LINKING TEACHER QUALITY, STUDENT
ATTENDANCE, AND STUDENT ACHIEVEMENT
Seth Gershenson
School of Public Affairs
American University
Washington, DC 20016-8070
gershens@american.edu
Abstract
Research on the effectiveness of educational inputs, particularly
research on teacher effectiveness, typically overlooks teachers’
potential impact on behavioral outcomes, such as student atten-
dance. Using longitudinal data on teachers and students in North
Carolina I estimate teacher effects on primary school student
absences in a value-added framework. The analysis yields two
main findings: First, teachers have arguably causal, statistically
significant effects on student absences that persist over time. Sec-
ond, teachers who improve test scores do not necessarily improve
student attendance, suggesting that effective teaching is multidi-
mensional and teachers who are effective in one domain are not
necessarily effective in others.
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doi:10.1162/EDFP_a_00180
C(cid:2) 2016 Association for Education Finance and Policy
Teachers’ Effects on Student Absences
I N T R O D U C T I O N
1 .
Research on the technology of skill formation routinely finds evidence of a direct
causal relationship between character skills and long-run socioeconomic outcomes
(Heckman, Stixrud, and Urzua 2006; Cunha, Heckman, and Schennach 2010).1 For
example, character skills such as conscientiousness, motivation, and self discipline pre-
dict important socioeconomic outcomes such as educational attainment, employment,
earnings, marriage, and crime (e.g., Jacob 2002; Borghans et al. 2008; Almlund et al.
2011; Lundberg 2012, 2013; Heckman and Kautz 2013; Jackson 2013). Attendance is an
objectively measurable behavior that is correlated with at least three of the “Big Five”
character skills identified by psychologists: Attendance is positively associated with con-
scientiousness (Duckworth et al. 2007) and negatively associated with neuroticism and
low levels of agreeableness (Lounsbury et al. 2004).2 Conscientiousness is a character
skill that is valued in the labor market (Heckman and Kautz 2013) and regular atten-
dance is highly valued by employers (Morrison et al. 2011; Lerman 2013; Pritchard 2013).
Similarly, regular school attendance is positively associated with academic achievement
(Gottfried 2009; Aucejo and Romano 2013; Gershenson, Jacknowitz, and Brannegan
2015) and negatively associated with grade retention (Nield and Balfanz 2006), drug
use (Hallfors et al. 2002), and dropping out of school (Rumberger and Thomas 2000).
As a result, identifying the educational inputs and interventions that improve stu-
dents’ attendance is likely of interest to both educators and policy makers. Most inter-
ventions, however, are designed to increase cognitive skills, as measured by standard-
ized tests, and evaluated accordingly (Heckman 2000). This is despite the facts that
character skills are more malleable than cognitive skills (Cunha and Heckman 2008;
Heckman 2000) and such a focus on testing may cause teachers and schools to divert
resources away from nontested skills (Baker et al. 2010; Harris 2011). A similar critique
applies to the large literature on teacher effectiveness, despite widespread agreement
that teachers are the most important school-provided educational input (e.g., Rivkin,
Hanushek, and Kain 2005; Clotfelter, Ladd, and Vigdor 2007; Goldhaber 2007; Harris
2011) and the fact that teachers likely affect students’ development in numerous areas
outside the reading and math skills measured by standardized tests (Ladd and Sorensen
2014).
The current study contributes to this gap in the literature by estimating teacher
effects on primary school students’ absences in a value-added (VA) framework. This
work complements research by Jackson (2013) on ninth-grade teachers’ effects on an
index of noncognitive skills, as at least some of the mechanisms through which teachers
affect primary school attendance likely differ from the ways that teachers affect sec-
ondary school attendance.3 Moreover, identifying the educational inputs that improve
the attendance of younger students is particularly important given that character skills
are shaped by children’s early environments (Heckman, Stixrod, and Urzua 2006),
1. Character skills encompass a variety of skills and behaviors that have previously been referred to as noncognitive
skills, noncognitive ability, soft skills, character traits, personality traits, and sociobehavioral skills, among other
names (Heckman and Kautz 2013).
2. The Big Five character skills are Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism
(OCEAN) (Heckman and Kautz 2013, pp. 10–12).
3. Student absences, suspensions, grade promotion, and grade point average comprise the noncognitive index
used in Jackson (2013).
126
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Seth Gershenson
problems of chronic absence and school disengagement manifest as early as first grade
(Alexander, Entwisle, and Kabbani 2001), and socioeconomic gaps in character skills
exist prior to kindergarten and grow over time (Duncan and Magnuson 2011). Improv-
ing the character skills and attendance habits of disadvantaged children will likely foster
socioeconomic mobility and social inclusion, and increase the returns to subsequent
educational attainment (Heckman and Kautz 2013). The mechanisms through which
teachers might affect primary school students’ attendance are discussed in section 2.
In addition to identifying what effect, if any, primary-school teachers have on stu-
dent absences, the current study also contributes to the literature on the validity of VA
estimates of teacher effectiveness more generally by addressing one of the central ques-
tions regarding VA articulated by Chetty, Friedman, and Rockoff (2014): Do high-VA
teachers improve student outcomes other than test scores? Estimating teachers’ effects
on an objective outcome such as student absences addresses the common criticism that
VA measures of teacher effectiveness focus too narrowly on students’ performance on
standardized tests. The focus on standardized tests is potentially problematic for several
reasons: It may cause teachers and schools to divert resources away from nontested
topics and skills (Baker et al. 2010; Harris 2011), it disregards Fenstermacher and
Richardson’s (2005) broad definition of quality teaching, and it potentially biases es-
timates of teacher quality by ignoring teachers’ effects on students’ character skills
and related behaviors (attendance, study habits, etc.) (Heckman 2000). Accordingly, I
assess the importance of objectively evaluating teachers along multiple dimensions by
comparing rankings of teacher effectiveness based on teachers’ effects on test scores
to similar rankings based on teachers’ effects on student attendance. Significant dif-
ferences between the two rankings would suggest that teacher evaluations based solely
on teachers’ abilities to improve student test scores miss an important dimension
of teacher quality, systematically misclassifying effective teachers as ineffective, and
vice versa. Estimates of teachers’ effects on student absences also provide objective
measures of effectiveness for teachers who do not teach in tested grades or subjects.
Specifically, I address two research aims. First, I estimate teachers’ effects on
student attendance by estimating VA models that consider student attendance as an
output of the education production function. Second, I estimate corresponding teacher
effects on academic achievement (i.e., test scores) and compare the resulting rankings
of teacher effectiveness to rankings based on teachers’ effects on student attendance.
Both sets of VA models are estimated using rich longitudinal administrative data on
both teachers and students from North Carolina. The main results generally suggest
that teachers significantly affect student absences and that this relationship is arguably
causal. Interestingly, teacher effectiveness is not stable across domains, as rank correla-
tions between teachers’ effects on test scores and teachers’ effects on student absences
are generally close to zero. Additional analyses show that these results are not specific
to North Carolina, teachers’ effects on student absences persist over time, and teachers’
effectiveness in reducing absences is positively correlated over time and with teaching
experience.
The paper proceeds as follows: Section 2 describes the mechanisms through which
teachers might affect student attendance and briefly reviews the relevant literature on
teacher effectiveness. Section 3 describes the data and section 4 describes the identi-
fication strategy. Section 5 presents the main results and section 6 presents further
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127
Teachers’ Effects on Student Absences
analyses of the intertemporal stability, persistence, and relationship with teaching ex-
perience of teachers’ effects on student absences. Section 7 examines the cross-domain
stability of teacher effectiveness by comparing rankings based on teachers’ effects on
student absences to rankings based on their effects on student achievement. Section 8
concludes.
2 . C O N C E P T U A L B A C K G R O U N D A N D P R E V I O U S L I T E R A T U R E
Chetty et al. (2011) found small transitory effects of kindergarten classrooms on cogni-
tive development (i.e., test scores) but significant effects on long-run outcomes such
as earnings. One interpretation of these seemingly contradictory results is that teach-
ers affect long-run outcomes by building students’ noncognitive skills (Jackson 2013).
Indeed, Jackson (2013) develops a formal latent factor model in which both student
and teacher ability are two-dimensional (i.e., cognitive and noncognitive), and shows
that teachers who affect students’ noncognitive development but not cognitive develop-
ment can substantively affect students’ long-run outcomes. It is generally believed that
instruction can improve character skills and there is a long history of using observed
behaviors as proxies for character skills (Almlund et al. 2011; Heckman and Kautz
2013). Attendance is one such proxy, which is both objective and easily observable, that
previous researchers have utilized (e.g., Jacob 2002; Jackson 2013).
Teachers potentially increase student attendance through some combination of fos-
tering a passion for learning, increasing student engagement, creating a strong sense
of community in the classroom, and stressing the importance of regular attendance
(Monk and Ibrahim 1984; Baker et al. 2010; Kelly 2012; Ladd and Sorensen 2014). Of
course, some of these mechanisms might be more relevant to older students whose
attendance is arguably less influenced by their parents. Another way that elementary
school teachers might affect young children’s attendance is by influencing parents’ and
other household adults’ attitudes toward children’s school attendance and punctuality,
as parental involvement is thought to be malleable.4 Teachers might do so early in the
school year at “back to school” nights or during parent–teacher conferences throughout
the year. Moreover, anecdotal evidence from private conversations with primary school
teachers suggests that some teachers initiate contact with students’ parents in response
to frequent absences. Some schools even have formal policies regarding parental out-
reach in response to student absences. For example, section 4400.4 of North Carolina’s
Newlin Elementary School’s 2013–14 Parent/Student Handbook states that the school
will initiate a student–parent conference after a student accumulates six unexcused
absences.5
Teachers likely vary in their influence on noncognitive behaviors, such as atten-
dance, for at least three reasons. First, some teachers may simply be better than others
at influencing students’ character skills and/or parental involvement. Second, teach-
ers’ attitudes toward the importance of teaching character skills relative to academic
skills may vary (Dombkowski 2001), resulting in differences across classrooms in time
4. For example, 6 percent of respondents in a 2004 Gallup Poll listed “increasing parental involvement” as the
“best way to improve K–12 education in the United States (U.S.)” (Gallup 2004).
5. See www.abss.k12.nc.us/cms/lib02/NC01001905/Centricity/Domain/166/Newlin%20ElementaryHandbook
%2013–14.pdf (p. 17).
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Seth Gershenson
and effort allocations. Third, teachers may allocate effort based on their perceived
ability to influence students’ character skills, regardless of the importance they attach
to influencing such skills (Jennings and DiPrete 2010).
To date, however, only four studies have empirically investigated the impact of
teachers on students’ character skills.6 First, Dobbie (2011) found that some of the
criteria used to determine admission into the Teach For America program are as-
sociated with improved classroom behavior but little evidence of an effect of the
Teach For America criteria on student absences. Second, Jennings and DiPrete (2010)
found that kindergarten and first-grade teachers in the Early Childhood Longitudinal
Study—Kindergarten Cohort (ECLS-K) have sizable effects on a “social-behavioral in-
dex” that measures children’s approaches to learning, self-control, and interpersonal
skills. Interestingly, the authors found that the teachers who had the largest effects
on children’s behavior did not always have large effects on children’s test scores, sug-
gesting that by focusing only on teachers’ effects on test scores, effective teachers may
be misclassified as ineffective, and vice versa. Third, Ladd and Sorensen (2014) inves-
tigated the relationship between North Carolina middle school teachers’ experience
and student absences, time spent reading for pleasure, time spent on homework, and
disruptive behavior in the classroom. The authors found significant effects of teacher ex-
perience on student absences. Finally, using administrative data from North Carolina,
Jackson (2013) found that ninth-grade teachers have significant effects on students’
noncognitive skills, as measured by an index of student absences, suspensions, grade
promotion, and grade point averages. Like Jennings and DiPrete, Jackson finds that
many of the teachers who most effectively develop students’ noncognitive skills have
only average effects on test scores, suggesting that focusing on test scores alone will fail
to identify some effective teachers. These findings are consistent with the robust result
in the VA literature that rankings of teacher effectiveness are not perfectly correlated
across academic subjects (e.g., Koedel and Betts 2007; Lockwood et al. 2007; Loeb and
Candelaria 2012; Loeb, Kalogrides, and B´eteille 2012; Goldhaber, Cowan, and Walch
2013), though cross-subject rank correlations tend to be significantly more stable than
the cross-domain rank correlations identified in the current study.
The general lack of attention paid to teachers’ impacts on students’ character skills
is therefore surprising, as identifying effective teachers is hugely important and there
is a growing consensus that providing high-quality teachers to all students must play
a prominent role in closing achievement gaps between students of different demo-
graphic and socioeconomic backgrounds (Rivkin, Hanushek, and Kain 2005; Har-
ris 2011). VA models that attempt to identify individual teachers’ contributions to
gains in student achievement are gaining popularity and acceptance as useful mea-
sures of teacher effectiveness, though such measures remain controversial (Baker
et al. 2010; Harris 2011; Chetty, Friedman, and Rockoff 2014). Specifically, critics
of VA measures of teacher effectiveness question whether policies that incentivize
schools and teachers to increase test scores displace beneficial classroom activities
6. The Talent Development high school program is a notable intervention designed to improve student atten-
dance. Initially launched in five Philadelphia public high schools, the program increased student attendance
by 3 to 7 percent in the first three treated cohorts (Kemple, Herlihy, and Smith 2005). The program provided
students with individualized support that, among other things, prioritized high attendance.
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129
Teachers’ Effects on Student Absences
Figure 1. Two-Dimensional Model of Teacher Effectiveness.
that develop character skills and learning in nontested academic subjects. In addition
to identifying primary-school teachers’ effects on student attendance, the current study
also contributes to the general VA literature by speaking to the practical significance of
this criticism.
I assess the practical importance of the criticism that VA models focus too narrowly
on students’ performance on standardized tests by comparing the stability of teacher
rankings of their effects on achievement gains to corresponding rankings based on
teachers’ effects on absences. If some teachers who excel at increasing test scores are
less able to promote attendance, and vice versa, policies that evaluate teachers on only
one dimension will necessarily misclassify a nontrivial subset of teachers. This idea
is formalized in figure 1, which assumes teacher quality is two-dimensional. Teacher
A is unambiguously the most effective teacher in figure 1, as teacher A exerts the
largest impact on students’ attendance and academic achievement. Note that if all two-
dimensional measures of teachers’ effectiveness were to fall on the dashed 45-degree
line then the dimension along which teachers are evaluated would not matter. Previous
research suggests this is not the case (Jennings and DiPrete 2010; Jackson 2013).
Now consider the effectiveness of teachers B, C, and D in figure 1. In the two-
dimensional setting, teacher D is unambiguously the least effective and has the small-
est impacts on both attendance and achievement. Meanwhile, teacher B excels at
improving students’ attendance and teacher C excels at improving students’ academic
achievement. An accountability system that evaluated teachers solely based on their
ability to improve student test scores, however, would mistakenly conclude that teacher
C is more effective than teachers B and D, who appear equally effective. By estimat-
ing teachers’ effects on both student absences and academic achievement, the current
study identifies the ability of an important educational input (teachers) to affect an
important noncognitive behavior (attendance). More generally, the current study pro-
vides evidence on the extent to which teachers excel along multiple dimensions and
the general importance of evaluating teachers along multiple objective dimensions.
3 . D A T A
I estimate teachers’ effects on student absences using longitudinal administrative data
on the population of third through fifth graders who attended North Carolina’s public
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Seth Gershenson
schools between the 2005–06 and 2009–10 school years. These student-level data
are maintained and provided by the North Carolina Education Research Data Center
(NCERDC).7 The NCERDC data contain administrative records on students’ race, gen-
der, poverty status, limited English proficiency status, whether the student had adminis-
tratively classified math or reading learning disabilities, total absences, student–teacher
links, and end-of-grade math and reading test scores.8 North Carolina’s end-of-grade
tests are state-mandated, criterion-referenced, vertically aligned, and are given to all
students in the spring of third, fourth, and fifth grades. Third-grade and 2006 data
are used as lags in value-added models and thus the analytic sample comprises fourth
and fifth graders between 2007 and 2010. Students who either experienced a mid-year
classroom change; repeated third, fourth, or fifth grade; or are missing achievement,
absence, or demographic data are excluded from the analysis. These exclusions result
in an analytic sample of 446,244 student-year observations, 27,943 unique classrooms,
and 13,391 unique teachers.
Table 1 summarizes the variation in student absences and the composition of the
analytic sample. The average student was absent about six times per year and the
standard deviation (SD) of about 5.5 indicates that there is substantial variation across
student-years in the sample. I decompose the variation in student absences between
schools, school years, teachers, classrooms, and students by estimating corresponding
“within-unit” SD in absences by computing the SDs of the residuals of regressions of
student absences on sets of school, school-by-year, teacher, classroom, or student fixed
effects. The within-school and within–school year SDs are quite similar to the overall
SD, indicating that most of the variation in student absences exists within, as opposed
to between, schools. The within-teacher and within-classroom SDs are slightly smaller,
though still constitute 95 to 97 percent of the variation in student absences. Again,
this indicates that within schools, most variation in student absences exists within, as
opposed to between, classrooms. Interestingly, the within-student SD is substantially
smaller, indicating about one third of the variation in student absences is due to
within-student changes in absence rates over time. Although this suggests absences
are somewhat “sticky,” there is significant within-student variation in absences over
time that might be partially attributable to teachers.
I D E N T I F I C A T I O N S T R A T E G Y
4 .
Teacher effects on student absences are identified by estimating VA models of the
form:
Ai j g s t = α Ai,t−1 + βxit + γ c−i, j g s t + θ j + πg + ωs t + ui j g s t ,
(1)
where i, j, g, s, and t index students, teachers, grades, schools, and years, respectively;
A is annual student absences, standardized by grade and year to facilitate comparisons
with the achievement results; x is a vector of observed student characteristics including
7. See www.childandfamilypolicy.duke.edu/research/nc-education-data-center for additional information. See
Goldhaber (2007), Rothstein (2010), and Jackson (2013) for examples of other studies that have fit VA models
to the NCERDC data.
8. Students were matched to teachers using administrative roster data (Course Membership file) that accurately
link students and teachers to courses. Such records exist for over 80 percent of students. Because absences
can be affected by multiple teachers, the sample is restricted to self-contained teachers who taught the student
both math and reading.
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131
Teachers’ Effects on Student Absences
Table 1.
North Carolina Analytic Sample Summary Statistics
Variable
Absences
(within school)
(within school-year)
(within teacher)
(within classroom)
(within student)
Standardized (Mean 0, SD 1)
Absences
Math score
Reading score
Lagged standardized
Absences
Math score
Reading score
Fourth grade
Fifth grade
Child race/ethnicity
Non-Hispanic white
Non-Hispanic black
Hispanic
Other
Female
Below poverty level
Limited English proficiency
Math disability
Reading disability
School year
2006–07
2007–08
2008–09
2009–10
N (Teachers)
N (Classrooms)
N (Student years)
SD
(5.52)
(5.44)
(5.40)
(5.34)
(5.22)
(1.75)
(0.96)
(0.97)
(0.97)
(0.96)
(0.96)
(0.95)
Mean
6.10
−0.02
0.09
0.07
−0.04
0.10
0.09
0.56
0.44
0.56
0.26
0.11
0.07
0.51
0.46
0.01
0.01
0.03
0.25
0.25
0.24
0.26
13,391
27,943
446,244
Notes: SD: standard deviation. Standardized absence and test score means
and SD are not precisely 0 and 1 because the standardization was per-
formed using all available absence and test score data.
race, gender, poverty status, special education, and English language proficiency; c is
a vector of classroom characteristics including class size, class composition, and the
average of student i’s classmates’ lagged absences and lagged achievement; θ , π , and
ω, are teacher, grade, and school-by-year fixed effects (FE), respectively; and u is an
idiosyncratic error term.9
9. Appendix table A.1 (available in a separate online appendix that can be accessed on Education Finance and
Policy’s Web site at www.mitpressjournals.org/efp) investigates the sensitivity of the main results to using
three alternative definitions of student absences: levels (unstandardized), natural logs, and indicators for
“chronically absent.” These results are consistent with the main results reported in table 2.
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Seth Gershenson
The school-by-year FE are central to the identification strategy and imply that the
teacher effects in equation 1 are identified by comparing teachers who were in the same
school during the same academic year.10 Importantly, this controls for the sorting of
teachers across schools, nonparametric school time trends, and variation across both
schools and time in the length of academic calendars. The latter is important in the
current context because longer school calendars provide more opportunities to be ab-
sent. Moreover, school-by-year FE control for school-level leadership and policy changes
that either directly influence student attendance or the way that student absences are
administratively recorded.
Ordinary least squares (OLS) is taken as the preferred estimator of equation 1 for
two reasons. First, Guarino, Reckase, and Wooldridge (2015) find OLS to be the most
robust estimator to a variety of potential student–teacher assignment scenarios. This
is potentially important, as Rothstein (2010) finds evidence of nonrandom sorting in
North Carolina. Second, Chetty, Friedman, and Rockoff (2014) find that most sorting
of students to teachers is based on lagged test scores and that conditioning on lagged
test scores alone yields estimated teacher effects with near-zero bias. Similarly, Kane
and Staiger (2008) find that controlling for lagged test scores yields unbiased estimates
of teacher effects and controlling for average classroom characteristics (i.e., the vector
c) improves the precision of estimated teacher effects. I also consider an extension of
equation 1 that conditions on lagged test scores and lagged absences, which produces
qualitatively similar estimates.
Still, even after conditioning on observed student and classroom characteristics,
within school-year endogenous sorting of students to teachers remains a threat to
identification. Accordingly, in testing for endogenous sorting based on observable
student characteristics, I follow Jackson (2013) and Chetty, Friedman, and Rockoff
(2014) by regressing predicted outcomes on estimated out-of-sample teacher effects
and school-by-year FE in the following linear regression model:
ˆyi j g s t = δ ˆθ j t + ωs t + ui j g s t .
(2)
The ˆθ in equation 2 are year-specific out-of-sample teacher effects estimated by
equation 1 using all non-t years of data. The ˆy in equation 2 are fitted values from
OLS regressions of actual student absences, math scores, and reading scores on their
lagged values and observed student characteristics. Intuitively, a significant correlation
between teacher effectiveness and predicted student outcomes is suggestive of endoge-
nous sorting. The estimated sign of δ speaks to the type of sorting (e.g., a positive δ
means that on average high-performing students are assigned to more effective teach-
ers). The results of these tests, presented in section 5, provide no evidence that OLS
estimates of equation 1 are biased by endogenous sorting based on observables.
10. Some policy makers may wish to compare teachers within or between schools, however, and different spec-
ifications can produce different rankings (e.g., Goldhaber and Theobald 2012). Table A.2 (available on the
Education Finance and Policy Web site) examines the sensitivity of the main results reported in table 2 by
replacing the school-by-year FE with school FE or removing them altogether. Identification in the former is
driven by teachers who changed schools during the sample time period. The latter provide state-wide teacher
comparisons. Both sets of estimates show qualitatively similar patterns to those generated by the preferred
baseline specification of equation 1.
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Teachers’ Effects on Student Absences
Next, I quantify the magnitude and variation in estimated teacher effects by test-
ing their joint significance, estimating the SD of the teacher effect estimates, and by
comparing estimated teacher effects at different points in the distribution (e.g., 25th
versus 75th percentiles). I estimate SD of the estimated teacher effects by following
the two-step procedure outlined in Jackson (2013, p. 14), which follows from Kane and
Staiger (2008). First, I compute classroom-level average residuals from estimates of
equation 1 that leave the teacher effects in the model’s error term. Second, I compute
the covariance between each classroom’s average residual and that from a randomly-
chosen classroom taught by the same teacher in a different year. To avoid potentially
compromising effects of outliers, I repeat step two 50 times and report the median esti-
mated SD (Jackson 2013). This approach is preferred to estimating the SD of estimated
teacher FE because it eliminates variation due to both sampling error and unobserved
classroom shocks that are not associated with teacher effectiveness.
To facilitate comparisons of the magnitude and distribution of estimated teacher
effects on student absences to those on academic achievement, I estimate traditional
VA model analogs to equation 1 that replace A with math and reading test scores. All
test scores are standardized by grade, year, and subject to have mean zero and SD
of one (Ballou 2009). The achievement VA models also condition on current student
absences, which raises a potentially interesting modeling question, though in practice
models that do and do not control for current student absences produce nearly identical
results.11 In section 7, these estimates are used to examine the cross-domain stability
of VA measures of teacher effectiveness by comparing VA-based rankings of teachers’
effects on student absences to analogous rankings of teachers’ effects on academic
achievement.
5 . M A I N R E S U L T S
Teacher Effects on Student Absences
Table 2 summarizes estimates of equation 1 for fourth and fifth graders’ absences, math
achievement, and reading achievement. The baseline estimates of teachers’ effects on
student absences reported in column 1 are strongly jointly significant and exhibit
significant variation across teachers: the Kane and Staiger (2008) consistent estimate
of the SD of teacher effects on absences is 0.07 of an absence SD. The difference
between the effect of a 90th percentile teacher and a 10th percentile teacher is about
90 percent of an absence SD, and the difference between teachers at the first and third
quartiles is about 40 percent of an absence SD. Column 2 shows that the preferred
baseline results reported in column 1 are robust to controlling for lagged test scores.
11. Specifically, because absences are at least partly outside of teachers’ control, it is unclear whether absences
should be controlled for in VA models designed to identify teachers’ effects on academic achievement (Noell
et al. 2008; Harris 2011). On the one hand, at least some student absences are completely outside teachers’
control and these absences should unambiguously be controlled for (Harris 2011). On the other hand, absences
caused by teachers are outcomes of the education production function and are thus “bad controls” (e.g., Angrist
and Pischke 2009, p. 64). In practice, the precise number of absences caused by teachers is unknown and
analysts are left with two suboptimal options: either omit student absences from the VA model and suffer
from potential omitted variables bias or control for student absences at the risk of “over controlling” and
penalizing teachers who improve test scores via improving student attendance. Appendix table A.3 (available
on the Education Finance and Policy Web site) shows that this is a practically unimportant modeling decision,
as rankings of teacher effectiveness generated by VA models that do condition on student absences are nearly
identical to rankings generated by VA models that do not condition on student absences.
134
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Table 2.
Baseline Teacher Effect Estimates
Outcome
Lagged absences
Lagged math
Lagged reading
Current absences
Controls
Teacher FE
Sch-by-yr FE
Adj. R2
Teacher FE
Joint sig. (F statistic)
Mean
SD of FE
SD (K-S)
90th – 10th percentile
75th – 25th percentile
Absences
1
2
Math
3
Reading
4
0.580
(0.003)∗∗∗
Yes
Yes
Yes
0.38
1.33∗∗∗
0.01
0.48
0.07
−0.91∗∗∗
−0.39∗∗∗
0.577
(0.003)∗∗∗
−0.041
(0.002)∗∗∗
0.011
(0.002)∗∗∗
Yes
Yes
Yes
0.38
1.33∗∗∗
0.01
0.48
0.07
−0.91∗∗∗
−0.40∗∗∗
0.780
(0.001)∗∗∗
−0.007
(0.000)∗∗∗
Yes
Yes
Yes
0.73
4.04∗∗∗
−0.02
0.41
0.13
0.90∗∗∗
0.43∗∗∗
0.758
(0.002)∗∗∗
−0.004
(0.000)∗∗∗
Yes
Yes
Yes
0.68
1.78∗∗∗
−0.01
0.41
0.07
0.84∗∗∗
0.38∗∗∗
Sorting test (N = 380,670)
Predicted Absences
Predicted Math
Predicted Reading
ˆθ (Eq. 2)
0.002
(0.002)
0.002
(0.002)
0.002
(0.005)
0.002
(0.005)
Notes: N = 446,244 student-year observations taught by 13,391 unique teachers. Standard errors are
clustered by school. Controls include indicators of child’s race/ethnicity, poverty status, limited English
proficiency, administratively classified learning disability, year indicators, and classroom characteristics
including class size, lagged peer achievement and absences, percent of classroom eligible for free or
reduced price lunch, and classroom racial composition. Absences and test scores are standardized by
subject, grade, and year to have mean zero and standard deviation (SD) one. K-S refers to Kane and
Staiger’s (2008) method for computing consistent estimates of the SD of estimated teacher effects.
The sorting test is described by equation 2 in the text.
∗∗∗p < 0.01.
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Columns 3 and 4 of table 2 report estimates for math and reading achievement,
respectively. The estimated coefficients on student absences are negative, statistically
significant, and similar in magnitude to estimates reported in the existing literature
(e.g., Gottfried 2009; Aucejo and Romano 2013; Gershenson, Jacknowitz, and Bran-
negan 2015). Consistent with prior research on teacher effectiveness, the results re-
ported in columns 3 and 4 of table 2 suggest that teachers have greater influence on
students’ math achievement than on reading achievement (e.g., Rockoff 2004; Kane
and Staiger 2008; Hanushek and Rivkin 2010; Jackson 2013). Moreover, the estimated
SD of teacher effects on math and reading are similar in magnitude to those found in
previous studies of primary school teachers in North Carolina (e.g., Rothstein 2010)
and across the United States (Hanushek and Rivkin 2010).
Interestingly, the estimated SD of teacher effects on student absences reported in
columns 1 and 2 of table 2 are similar in magnitude to those of teacher effects on both
math and reading achievement. Indeed, they are identical to those for reading. Taken
together, the results reported in table 2 suggest that the total variation in teachers’ effects
on student absences is similar to that in teachers’ effects on academic achievement.
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Teachers’ Effects on Student Absences
The bottom panel of table 2 provides evidence that the estimated teacher effects
are not biased by endogenous sorting of students to teachers based on observable
characteristics. Specifically, none of the estimated coefficients on the out-of-sample
estimates of teacher quality (δ in equation 2) are significantly different from zero at
traditional confidence levels. Moreover, the estimated coefficients and corresponding
standard errors are relatively small in magnitude. This is reassuring and suggests that
the teacher effect estimates from equation 1 are causal.
External Validity of Main Results
The generalizability of any state-level analysis is a concern, even in as diverse a state
as North Carolina. Accordingly, I augment the main results presented above with
similar analyses of the nationally representative ECLS-K. The ECLS-K is a longitudinal
data set collected by the National Center for Education Statistics (NCES). The original
sample of approximately 22,000 children from about 1,000 kindergarten programs
was designed to be nationally representative of kindergartners during the 1998–99
academic year. Subsequent analyses of the ECLS-K data are conducted using sampling
weights provided by NCES that adjust for the oversampling of certain demographic
groups.12 Importantly, the ECLS-K administered age-appropriate math and reading
assessments each spring and asked school administrators to report each student’s total
annual absences.
The ECLS-K surveyed children, parents, teachers, and school administrators during
the fall and spring of kindergarten and the spring of first, third, and fifth grades. As a
result, VA models similar to equation 1 can only be estimated for first-grade students
conditional on kindergarten absences. Like in the North Carolina analysis, students
who experienced a mid-year classroom change, repeated kindergarten or first grade, or
are missing test-score or demographic data, are excluded from the analysis. The analytic
sample is also restricted to classrooms in which at least five students were sampled
by the ECLS-K, so that there are a reasonable number of data points with which to
estimate classroom effects. These exclusions yield an analytic sample of 2,350 student-
year observations.13 The reference to classrooms and not teachers is intentional, as the
ECLS-K followed one cohort of students and observes each teacher in only one year.
Specifically, the ECLS-K analog to equation 1 is
Ai j g s t = α Ai,t−1 + βxit + λ j g s t + ui j g s t ,
(3)
where λ is a classroom FE. Importantly, the classroom effects in equation 3 can neither
be interpreted as, nor decomposed into, teacher effects. For example, the classroom FE
specification of equation 3 cannot distinguish teacher effects from class size effects,
as the classroom effects are treated as fixed rather than random and classrooms are
nested within teachers. As a result, the ECLS-K results cannot be directly compared to
the analyses of North Carolina teacher effects discussed earlier. Given that the ECLS-K
follows one cohort of students over time, a teacher FE specification equivalent to equa-
tion 1 cannot be estimated using the ECLS-K data because each teacher is only observed
12. Specifically, I use the C#CW0 longitudinal weight, where # is wave number.
13. Reported ECLS-K sample sizes are rounded to the nearest 50. See Gershenson, Jacknowitz, and Brannegan
(2015) for further discussion of the ECLS-K’s student assessments and absence data.
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Table 3.
Classroom Effect Estimates in North Carolina and the ECLS-K
Outcome
Absences
Math
Reading
Lagged absences
Lagged math
Lagged reading
Current absences
Controls
Classroom FE
North Carolina
Joint sig. (F stat)
Mean
SD of FE
90th – 10th percentile
75th – 25th percentile
ECLS-K
Joint sig. (F)
Mean
SD of FE
90th – 10th percentile
75th – 25th percentile
1
Yes
No
No
No
Yes
Yes
1.68∗∗∗
0.01
0.33
−0.62∗∗∗
−0.31∗∗∗
76.6∗∗∗
0.0003
0.39
−0.53∗∗∗
−0.27∗∗∗
2
Yes
Yes
Yes
No
Yes
Yes
1.68∗∗∗
0.01
0.33
−0.62∗∗∗
−0.31∗∗∗
97.5∗∗∗
0.001
0.39
−0.53∗∗∗
−0.27∗∗∗
3
No
Yes
No
Yes
Yes
Yes
4.16∗∗∗
−0.01
0.28
0.68∗∗∗
0.35∗∗∗
80.9∗∗∗
0.22
0.28
0.69∗∗∗
0.38∗∗∗
4
No
No
Yes
Yes
Yes
Yes
1.98∗∗∗
−0.01
0.23
0.52∗∗∗
0.27∗∗∗
209.8∗∗∗
0.08
0.27
0.66∗∗∗
0.34∗∗∗
Notes: The North Carolina sample contains 446,244 student-year observations and 27,943
classrooms. The ECLS-K sample contains 2,350 first grade students and 300 classrooms
(sample sizes rounded to nearest 50). Standard errors are clustered by school. Student con-
trols include indicators of mother’s educational attainment, child’s race/ethnicity, poverty
status, English spoken at home, and special education designation. Absences and test
scores are standardized by subject, grade, and year to have mean zero and standard
deviation (SD) one. The four classroom-FE specifications reported here correspond to the
four teacher-FE specifications reported in table 2.
∗∗∗p < 0.01.
in one academic year. Similarly, the school, grade, and year FE commonly included
in VA models (e.g., equation 1) are subsumed by the classroom FE in equation 3.
Nonetheless, equation 3 can be estimated using both the North Carolina and ECLS-K
data. The generalizability of the main results can then be inferred by comparing esti-
mates of equation 3 using the North Carolina data to estimates of equation 3 using the
ECLS-K data.
Table 3 summarizes the variation in estimated classroom effects in both data sets.
The similarities across data sets are striking. For example, the differences between
classroom effects at the 25th and 75th percentiles are about one third of a standard
deviation for each outcome in each data set. Together, the results reported in table 3
suggest that the analysis of North Carolina teachers is at least somewhat representative
of public primary school teachers in the United States.
6 . F U R T H E R A N A L Y S E S O F T E A C H E R S ’ E F F E C T S
O N S T U D E N T A B S E N C E S
Having shown that the main results are arguably internally and externally valid, this
section provides three additional pieces of evidence regarding the internal validity of
the finding that teachers affect student absences. Specifically, this section investigates
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Teachers’ Effects on Student Absences
Table 4.
Intertemporal Stability of Teacher Effect Estimates
Outcome
Absences
Math
Reading
N (teachers)
Two-year teacher effects
2007–08 to 2009–10
0.13∗∗∗
0.45∗∗∗
0.23∗∗∗
2,250
Classroom effects
2007 to 2008
2008 to 2009
2009 to 2010
Weighted average
0.05∗∗∗
0.09∗∗∗
0.10∗∗∗
0.08∗∗∗
0.43∗∗∗
0.39∗∗∗
0.39∗∗∗
0.40∗∗∗
0.23∗∗∗
0.24∗∗∗
0.22∗∗∗
0.23∗∗∗
4,557
4,439
4,571
.
Notes: Spearman rank correlations are reported. Two-year teacher effects are
estimated by splitting the data in two two-year samples and estimating equation
1 twice: once using 2006–07 and 2007–08 data and once using 2008–09 and
2009–10 data. Year-specific classroom effects come from estimating equation 3
separately for each school year between 2006 and 07 and 2009–10. The absence,
math, and reading estimates are based on the preferred specifications reported in
columns 1, 3, and 4 of tables 2 and 3.
∗∗∗p < 0.01.
the extent to which individual teachers’ effects on student absences are stable over
time, the persistence of grade g teachers’ effects on student absences in grade g+1,
and whether the ability to improve student attendance evolves over teachers’ careers.
In doing so, the results presented in this section shed some light on the mechanisms
through which teachers affect students’ attendance. Taken as a whole, these results
lend additional empirical support to the general finding that teachers modestly affect
student attendance.
Intertemporal Stability of Estimated Teacher Effects on Student Absences
If the teacher effects discussed in section 5 merely reflect noise or the composition
of teachers’ classrooms in specific years, then the intertemporal stability of teachers’
contemporaneous effects on student absences would be indistinguishable from zero.
Alternatively, if there is a stable component in teachers’ ability to influence student
absences, teacher rankings should be positively correlated across years. Accordingly,
table 4 reports two types of intertemporal Spearman rank correlations of teachers’
effects on student absences, math achievement, and reading achievement. The top
panel of table 4 compares teacher rankings generated by data from the 2006–07 and
2007–08 school years to teacher rankings generated by data from the 2008–09 and
2009–10 school years. These teacher effects were generated by estimating equation 1
separately for each of the two two-year time periods for teachers for whom data are avail-
able for all four years. The bottom panel of table 4 compares classroom rankings across
each pair of contiguous years and the weighted average of these three correlations.
These classroom effects were generated by estimating equation 3 separately for each
year and comparing the resulting rankings for teachers who taught in two consecutive
years. Both panels of table 4 provide evidence that is consistent with significant teacher
effects on student absences, as the intertemporal rank correlations are about one tenth
of a SD and are strongly statistically significant. Nonetheless, the intertemporal rank
correlations in teachers’ effects on student absences are only about one fourth to one
half the size of the intertemporal rank correlations in teachers’ effects on test scores.
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Table 5.
One-Year Persistence of Fourth-Grade Teacher Effects
Outcome
OLS
Long Run (LR)
Persistence (P)
Classroom FE
Controls
Absences
1
0.59
(0.005)∗∗∗
0.88
(0.005)∗∗∗
0.51
(0.25)∗∗
Yes
Yes
Math
2
0.78
(0.002)∗∗∗
0.98
(0.003)∗∗∗
0.35
(0.06)∗∗∗
Yes
Yes
Reading
3
0.75
(0.002)∗∗∗
0.98
(0.003)∗∗∗
0.48
(0.09)∗∗∗
Yes
Yes
Notes: N = 101,679 fifth-grade students for whom twice-lagged test scores
and absences and once-lagged out-of-sample estimated teacher quality
are observed. Each cell represents the estimated coefficient on the lagged
dependent variable in equation 3 from a separate regression, as described
in Jacob et al. (2010). Standard errors are clustered by classroom (Jacob
et al. 2010). Controls include indicators of child’s race/ethnicity, poverty
status, limited English proficiency, and administratively classified learning
disabilities. Absences and test scores are standardized by subject, grade,
and year to have mean zero and standard deviation one.
∗∗p < 0.05; ∗∗∗p < 0.01.
This could be because estimated effects on student absences are noisier or because
teachers’ abilities to affect student absences are more limited and context-dependent
than their abilities to affect test scores. Finally, estimates of the intertemporal stability
of teachers’ effects on test scores are consistent with those in the existing literature
(e.g., McCaffrey et al. 2009; Loeb and Candelaria 2012; Goldhaber and Hansen 2013).
Persistence of Teachers’ Effects on Student Absences
The mechanisms through which teachers can affect student absences, discussed in
section 2, suggest that teachers’ effects on student attendance should persist in subse-
quent school years. For example, a teacher who instills a love of learning in students
or who successfully motivates parents to facilitate regular attendance will likely affect
students’ current and future attendance. To test whether this is the case, I use the
method proposed by Jacob, Lefgren, and Sims (2010) to estimate the average persis-
tence of fourth grade teachers’ effects on students’ fifth-grade outcomes. Specifically,
Jacob, Lefgren, and Sims (2010) show that the OLS estimate of α in equation 3 can
be interpreted as the persistence of observed outcome y (αOLS), and the instrumental
variables (IV) estimate of α that instruments for yi,t−1 with yi,t−2 can be interpreted as
the persistence of the long-run (LR) component of y (αLR). Finally, the authors show
that the IV estimate of α that instead instruments for yi,t−1 with ˆθi,t−1, as defined in
equation 2, can be interpreted as the fraction of variation in the LR component of y
attributable to teachers. Accordingly, the third estimate of α represents the average
persistence of teacher effects (αP).
Table 5 reports each of these three estimates of α for absences, math achievement,
and reading achievement. Estimates of αOLS and αLR are slightly smaller for absences
than for math and reading achievement, suggesting that absences are less persistent
over time than academic skills. This is consistent with the general result that noncog-
nitive skills are more malleable than cognitive skills (e.g., Heckman 2000; Cunha and
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Teachers’ Effects on Student Absences
Heckman 2008). It is also reassuring that the estimates of αOLS and αLR for math and
reading reported in table 5 are similar to the corresponding estimates reported by Jacob,
Lefgren, and Sims (2010). Interestingly, the estimate of αP for absences is larger than
the corresponding estimates for math and reading achievement, though the absence
estimate is less precisely estimated. Still, the null hypothesis of zero persistence in
teachers’ effects on absences can be rejected with 5 percent confidence. This suggests
that teachers’ effects on student absences are at least as persistent as teachers’ effects
on academic achievement, despite less intertemporal persistence in the LR compo-
nent of students’ absences than in the LR components of math and reading ability.
Specifically, the point estimate of 0.51 reported in column 1 of table 5 suggests that
about half the variation in fourth-grade student absences attributable to fourth-grade
teachers persists in fifth grade. Again, this result is consistent with the general finding
that teachers affect student attendance.
Does Teaching Experience Affect Student Absences?
Finally, if teachers do affect student attendance, it stands to reason that their ability
to do so improves with teaching experience (Ladd and Sorensen 2014). For example,
more experienced teachers might converse with parents and teach character skills
more effectively than their less-experienced counterparts. Evidence of an “experience
gradient” in teachers’ effects on student attendance would lend additional empirical
support to the claim that teachers affect student attendance. Accordingly, I estimate
the effect of teachers’ experience on student absences using the nonparametric specifi-
cation and estimation framework advocated by Wiswall (2013). Specifically, the returns
to teaching experience are estimated in a two-step procedure. First, the classroom
fixed effects in equation 3 are estimated (ˆλ) and saved for use in step 2. Second, the (ˆλ)
are regressed on teacher experience (exper); teacher, grade, and year FE; and the vector
of classroom characteristics from equation 1. Following Wiswall (2013), I model teach-
ers’ experience as a set of K = 36 binary indicators for each experience level from 1 to 35
plus a category for 36+ years of experience, where new teachers with zero experience
constitute the omitted reference category. Formally,
ˆλi j g s t =
K(cid:2)
k=1
ϕk1{exper j t
= k} + γ c−i, j g s t + θ j + πg + δt + ui j g s t ,
(4)
where 1{·} is the indicator function.14
The thirty-six estimated ϕ parameters for each outcome (i.e., absences, math
achievement, and reading achievement) are plotted in figure 2. For math, the non-
parametric estimates suggest that returns to experience continue to accrue over the
first twenty years of teaching, which are consistent with the findings of Wiswall (2013).
The relationship between teaching experience and students’ reading achievement fol-
lows a similar pattern but the effects are only about half as large as those for math
achievement. Again, this is consistent with previous research on the returns to teach-
ing experience (e.g., Clotfelter, Ladd, and Vigdor 2007; Kane, Rockoff, and Staiger
2008; Ladd and Sorensen 2014) and with results presented earlier in this article that
14. School FE are omitted from equation 4 because relatively few teachers in the analytic sample changed schools.
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Notes: This figure reports nonparametric estimates of the effect of teaching experience on three outcomes: student absences,
math achievement, and reading achievement. Each outcome is standardized to have mean zero and standard deviation one. New
teachers with zero years of experience constitute the omitted category, so each coefficient compares the returns to a given level of
experience to a new teacher. Teachers with more than 35 years of experience are grouped together in the final category. Estimates
were generated by the two-stage estimation strategy described in the text and follow from Wiswall (2013). All models control for
lagged student outcomes, student characteristics, classroom characteristics, and teacher, grade, and year fixed effects. Models were
estimated using the subset of NCERDC data for which teacher experience data were available. N = 295,305 student years and
9,064 unique teachers.
Figure 2. Nonparametric Estimates of Returns to Teaching Experience.
suggest that teacher effects on reading achievement are about half as large as those on
math achievement (e.g., table 2).
The estimated relationship between teaching experience and student absences mir-
rors that between teaching experience and reading achievement, suggesting that more
experienced teachers are modestly more effective at reducing student absences. For
example, on average, students assigned to teachers who have twenty years of teach-
ing experience have about 20 percent of a SD fewer absences than similar students
assigned to new teachers. Generally, these effects are smaller in magnitude than the
effects of middle school math and English teachers on middle school student absences
in North Carolina found by Ladd and Sorensen (2014). For example, the authors find
that teachers who have twenty years of experience decrease student absences by about
60 percent of a student-absence SD. This difference could result from middle school
students having relatively more agency over their absences than primary school stu-
dents. Still, that the effects of primary school teachers’ teaching experience on student
absences shown in figure 2 are similar in magnitude to those on reading achievement
is again consistent with the main results presented in table 2 and suggestive of a causal
relationship between teacher effectiveness and student attendance.
7 . C R O S S - D O M A I N S T A B I L I T Y O F E S T I M A T E D T E A C H E R E F F E C T S
I now compare the estimated teacher effects on student absences to those on aca-
demic achievement to examine the stability of teacher effectiveness across cognitive
and noncognitive domains. I do so by comparing rankings of teacher and classroom
effectiveness based on the teacher and classroom effects generated by equations 1 and 3.
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Teachers’ Effects on Student Absences
Table 6.
Cross-Domain Stability of Estimated Teacher and Classroom Rankings
Spearman
Corr.
Coeff.
Both
Above
90th
Percentile
Both
Above
75th
Percentile
North Carolina Teacher Rankings
Absence-Math
Absence-Reading
−0.04∗∗∗
−0.02∗
Math-Reading
0.34∗∗∗
North Carolina Classroom Rankings
0.06∗∗∗
0.05∗∗∗
0.46∗∗∗
Absence-Reading
Absence-Math
Math-Reading
ECLS-K Classroom Rankings
Absence-Math
Absence-Reading
Math-Reading
−0.07
0.10∗
0.37∗∗∗
1.7%
1.8%
3.5%
1.3%
1.3%
3.1%
1.0%
2.0%
2.6%
6.5%
7.2%
11.3%
6.7%
6.7%
11.8%
5.6%
8.5%
11.8%
Both
Above
Mean
25.5%
24.7%
30.4%
27.9%
28.0%
33.9%
24.8%
28.1%
31.7%
Both
Above
Median
Both
Below
25th
Percentile
Both
Below
10th
Percentile
24.9%
25.1%
31.0%
26.1%
25.9%
33.2%
22.9%
27.5%
30.1%
6.6%
7.1%
10.9%
7.1%
7.3%
12.0%
4.6%
5.9%
9.8%
1.1%
1.6%
2.9%
1.4%
1.7%
3.4%
0.7%
1.3%
2.6%
Notes: The North Carolina sample contains 446,244 student-year observations and 27,943 classrooms. The ECLS-K sample
contains 2,350 first grade students and 300 classrooms (sample sizes rounded to nearest 50). Teacher rankings are based
on the teacher effects estimated in columns 1, 3, and 4 of table 2. Classroom rankings are based on the classroom effects
reported in columns 1, 3, and 4 of table 3. Absence-subject and math-reading refer to cross-domain and cross-subject stability,
respectively.
∗p < 0.1; ∗∗∗p < 0.01.
Comparisons are made between rankings rather than between point estimates because
VA models frequently produce reliable rankings of teacher effectiveness even when
the point estimates are inconsistent (Guarino et al. 2014) and rankings are arguably
more policy relevant than point estimates. Specifically, rankings are compared across
domains in three ways. First, I compute Spearman rank correlations. Second, I com-
pute the percentage of teachers who are above average in both rankings, and similarly
for various quantiles of interest. Finally, more nuanced transition matrixes are reported
in Appendix table A.4 (available on the Education Finance and Policy Web site).
The first panel of table 6 summarizes these relationships for teachers. Spearman
rank correlations between the absence and academic achievement rankings are close
to zero and actually negative, suggesting that teachers who excel in one domain do not
necessarily excel along others. This is further evidenced by the fact that relatively few
teachers are above or below specific thresholds in both rankings. For example, only
about 1 to 2 percent of teachers are in the top (bottom) decile, 7 percent are in the top
(bottom) quartile, and 25 percent are in the top (bottom) half of both the absence and
academic rankings.15 There is noticeably more stability between the math and reading
15. These numbers can be converted into the percentage of eligible teachers by dividing by the quantile’s range.
For example, 17 percent (1.7/10) of teachers in the top decile of the absence ranking are in the top decile of the
math ranking. It is also worth noting that table A.4 in the online appendix (available on the Education Finance
and Policy Web site) reports transition matrixes that provide a more nuanced view of the cross-domain and
cross-subject stability of teacher rankings, as correlations can mask large swings in rankings (Goldhaber and
Theobald 2012). Again, rankings are less stable across domains than across subjects. For example, only about
22 percent of teachers in the top (bottom) fifth of the math rankings are also in the top (bottom) fifth of the
absence rankings. The cross-subject transition matrixes are consistent with previous research that finds about
40 percent of the lowest (highest) performing teachers in math are similarly low (high) performing in reading
(e.g., Loeb, Kalogrides, and B´eteille 2012).
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rankings. It is reassuring that the cross-subject correlation of 0.34 fits comfortably
within the range of previous estimates (e.g., Loeb and Candelaria 2012; Goldhaber,
Cowan, and Walch 2013).
The second and third panels of table 6 compare the cross-domain and cross-subject
stability of estimated classroom effects using the NCERDC and ECLS-K data sets,
respectively. Once again, the North Carolina and ECLS-K analyses yield remarkably
similar results, suggesting that the North Carolina results generalize to the U.S. pop-
ulation. The cross-domain rank correlations are close to zero in both data sets and the
cross-subject rank correlations are about 0.4. Taken together, the results presented in
table 6 suggest that teachers who are (in)effective in one domain are not necessarily
(in)effective in others. This result is consistent with research by Jackson (2013) and
Jennings and DiPrete (2010) and suggests that narrowly focusing on test scores will
potentially misclassify teachers who improve students’ character skills, such as regular
attendance, as ineffective.
8 . D I S C U S S I O N
This paper uses longitudinal administrative data on teachers and students in North
Carolina to estimate teacher effects on both student absences and academic achieve-
ment. The analyses yield two novel findings, which are generally consistent with similar
analyses of the nationally representative ECLS-K and robust to a variety of VA model
specifications. First, teachers have statistically significant effects on student absences,
which are not biased by endogenous sorting of students to teachers based on observable
student characteristics, and are similar in magnitude to teachers’ effects on reading
test scores. Second, there is essentially zero correlation between rankings of teacher
effects on absences and rankings of teacher effects on academic achievement, which
suggests that there are multiple dimensions of effective teaching, and teachers who
excel along one dimension do not necessarily excel along others. These findings are
generally consistent with previous studies of teachers’ ability to affect noncognitive and
sociobehavioral skills in other contexts (Jennings and DiPrete 2010; Jackson 2013).
Three additional results lend additional support to the finding that teachers affect
student absences. First, teachers’ contemporaneous effects on student absences are
positively correlated over time, suggesting that there is a permanent component to
teachers’ effects on student absences over and above transitory components associ-
ated with a particular classroom. Second, teachers’ effects on student absences persist
into the following academic year, suggesting that teachers affect students’ (or par-
ents’) attitudes and preferences, rather than simply providing short-run incentives to
attend class. Third, more experienced teachers tend to have larger effects on student
attendance. This could either be because learning to alter student behaviors, such as
attendance, takes time or because new teachers initially choose to focus on improving
their academic instructional skills. It would be useful for future research to investigate
the underlying sources of the experience gradient in teachers’ effects on character skills.
Similarly, future research might extend the analyses conducted in section 6 to other
contexts and investigate how teachers affect other types of character skills and related
student outcomes.
The results presented in this article contribute to two distinct literatures in the eco-
nomics of education, as well as to our understanding of the educational process more
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Teachers’ Effects on Student Absences
generally. First, the finding that teachers affect primary school students’ attendance
furthers our understanding of the education production function and the educational
inputs that develop character skills. Based on existing estimates of student absences’
effects on test scores (e.g., Aucejo and Romano 2013; Gershenson, Jacknowitz, and
Brannegan 2015), the decrease in student absences attributable to a one SD improve-
ment in teacher effectiveness (i.e., 0.07 absence SD, or about 0.4 student absences)
translates into relatively small achievement gains comparable to about 3 percent of
the test-score gains attributable to a one SD improvement in teacher effectiveness (as
measured by effects on test scores).
Nonetheless, student absences, particularly in primary school, are important over
and above their direct impact on test scores for several reasons. Children form habits
and undergo substantial developmental changes during these formative years, which
is important given that high school absences predict negative long-run outcomes
such as grade retention (Nield and Balfanz 2006), drug use (Hallfors et al. 2002),
and dropping out of school (Rumberger and Thomas 2000) and the longer-term
importance of regular attendance in the labor market (Heckman and Kautz 2013).
Indeed, improving attendance habits could be one mechanism through which primary
school teachers affect long-run socioeconomic outcomes. Moreover, there are positive
externalities, or peer effects, of individual students’ attendance and school engagement
on the academic achievement of their classmates (Gottfried 2011). It could also be the
case that student absences influence peers’ attendance habits. Finally, from a practical
standpoint, the finding that teachers affect student attendance is likely to be of direct
interest to school principals and administrators seeking to improve the academic
performance and school engagement of disadvantaged and chronically absent students.
Information on the teachers who most effectively improve student attendance might
be used either to identify the classroom characteristics and teaching strategies that
contribute to improvements in student attendance or to strategically assign students
to teachers. Similarly, the finding that teachers can and do affect student attendance
might be used in pre-service and professional-development training to motivate the
importance and ability of teachers to influence students’ socioemotional behaviors.
Second, the current study also contributes to the general literature on the use and
estimation of VA models of teacher effectiveness. The small and sometimes negative
correlation between rankings of teacher effectiveness across domains (absences versus
academic achievement) suggests the importance of evaluating teachers along multiple
objective dimensions. The lack of a strong positive relationship between these rankings
could result from some teachers eliciting test score gains by running a strict, drill-based
classroom at the expense of maintaining a stimulating learning environment. Alterna-
tively, if teachers who improve attendance have larger average class sizes as a result,
a “bad apple” model of peer effects (Lazear 2001) might undermine the classroom’s
average test performance. It would be useful for future research to further investigate
the within-teacher relationships between different types of teaching skills. Similarly,
future research might probe the exact mechanisms through which teachers affect at-
tendance and related character skills, as the current study is unable to disentangle
effects on parental involvement from effects on students’ dispositions and behaviors.
In the meantime, however, current teacher evaluation systems that prioritize teachers’
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effects on student test scores are potentially failing to recognize the effectiveness of
teachers who facilitate students’ development in other domains and potentially divert
teachers’ time and energy away from lessons and activities that develop character skills.
It is therefore important that teacher evaluation systems include multiple measures
of teacher effectiveness, perhaps including measures of teachers’ ability to improve
students’ attendance and related character skills. Indeed, if teachers were incentivized
and encouraged to improve student attendance and related character skills, their effects
on such behaviors would likely be even larger than those found here.
ACKNOWLEDGMENTS
The author is grateful for financial support from the Spencer Foundation and the American
Educational Research Association (AERA). AERA receives funds for its AERA Grants Program
from the National Science Foundation under NSF grant DRL-0941014. Opinions reflect those
of the author and not necessarily those of the funding agencies. The author thanks the North
Carolina Education Research Data Center for providing access to the restricted-use North Car-
olina data. The author thanks Nora Gordon, Cassie Guarino, Mike Hansen, two anonymous
referees, seminar participants at American University, Johns Hopkins University, Oregon State
University, The College Board, and The University of Oregon, and conference participants at the
2014 meetings of the Association for Education Finance and Policy and Society for Research on
Educational Effectiveness for providing helpful comments. Andrew Brannegan and Michael S.
Hayes provided excellent research assistance. Any remaining errors are my own.
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