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Program and policy effects
This paper reports improvements in teacher job performance, as measured by student test scores, resulting from a program of (zero-) low-stakes peer evaluation. Teachers working at the same school observed and scored each other’s teaching. Students in randomly-assigned treatment schools scored 0.07σ higher on math and English exams (0.09σ lower-bound on TOT). Within each treatment school, teachers were further randomly assigned to roles: observer and observee. Teachers in both roles improved, perhaps slightly more for observers. The typical treatment school completed 2-3 observations per observee teacher. Variation in observations was generated partly by randomly assigning a low and high (2*low) dose of suggested number of observations. Benefits were quite similar across dose conditions.
Students’ level of academic skills at school entry are a strong predictor of later academic success, and focusing on improving these skills during the preschool years has been a priority during the past ten years. Evidence from two prior nationally representative studies indicated that incoming kindergarteners’ math and literacy skills were higher in 2010 than 1998, but no national studies have examined trends since 2010. This study examines academic skills at kindergarten entry from 2010 and 2017 using data from over 2 million kindergarten students. Results indicated kindergarteners in 2017 have slightly lower math and reading skills than in 2010, but that inequalities at school entry by race/ethnicity and school poverty level have decreased during this period.
The sustaining environments hypothesis refers to the popular idea, stemming from theories in developmental, cognitive, and educational psychology, that the long-term success of early educational interventions is contingent on the quality of the subsequent learning environment. Several studies have investigated whether specific kindergarten classroom and other elementary school factors account for patterns of persistence and fadeout of early educational interventions. These analyses focus on the statistical interaction between an early educational intervention – usually whether the child attended preschool – and several measures of the quality of the subsequent educational environment. The key prediction of the sustaining environments hypothesis is a positive interaction between these two variables. To quantify the strength of the evidence for such effects, we meta-analyze existing studies that have attempted to estimate interactions between preschool and later educational quality in the United States. We then attempt to establish the consistency of the direction and a plausible range of estimates of the interaction between preschool attendance and subsequent educational quality by using a specification curve analysis in a large, nationally representative dataset that has been used in several recent studies of the sustaining environments hypothesis. The meta-analysis yields small positive interaction estimates ranging from approximately .00 to .04, depending on the specification. The specification curve analyses yield interaction estimates of approximately 0. Results suggest that the current mix of methods used to test the sustaining environments hypothesis cannot reliably detect realistically sized effects. Our recommendations are to combine large sample sizes with strong causal identification strategies, and to study combinations of interventions that have a strong probability of showing large main effects.
We examine whether virtual advising – college counseling using technology to communicate remotely – increases postsecondary enrollment in selective colleges. We test this approach using a sample of approximately 16,000 high-achieving, low- and middle-income students identified by the College Board and randomly assigned to receive virtual advising from the College Advising Corps. The offer of virtual advising had no impact on overall college enrollment, but increased enrollment in high graduation rate colleges by 2.7 percentage points (5%), with instrumental variable impacts on treated students of 6.1 percentage points. We also find that non-white students who were randomly assigned to a nonwhite adviser exhibited stronger treatment effects.
Holzer and Baum’s recent book, ‘Making College Work: Pathways to Success for Disadvantaged Students,’ provides an excellent up-to-date review of higher education. My review first summarizes its key themes: 1) who gains from college and why? 2) mismatch and the need for more structure; 3) problems with remediation; 4) financial barriers and 5) the promise of comprehensive support. I then critique the book’s proposed solutions using some of my own qualitative and quantitative data. Some recommendations are worth considering, while others are too expensive or unlikely to make a meaningful difference without addressing the underlying lack of preparedness and motivation of college students. I argue that making mandatory some existing services, such as application assistance and advice, proactive tutoring and advising, and greater career transition support, has the most immediate potential.
Child care subsidies play an important role in stabilizing parental employment and helping low- income families access care. With limited federal requirements under CCDBG, states developed divergent subsidy program policies. Our study examines how variations in six state policy levers that capture CCDF administrative burdens and generosity relate to stability in children’s care in the CCDF program, known as subsidy “spells.”: (1) length of eligibility redetermination; (2) reporting requirements for income changes; (3) grace period for care before termination; (4) provider reimbursement rates; (5) parent copay amounts; and (6) difference between initial and continuing eligibility income thresholds. We exploit states’ changes in these policies during a 10- year period (2004-2013) using state fixed effects analyses to identify their impact on spell length. We find that administrative burdens robustly affect child care spell length; increasing states’ redetermination period length by one month increased state median subsidy spell length by 1.4 weeks, but requiring all changes in family income to be reported while enrolled in CCDF decreased spell length by 2.3 weeks. Switching to a 12-month redetermination period increased median spell length by 30%. CCDF policy generosity was not related to spell length. Results are discussed in the context of the 2014 CCDBG reauthorization.
We provide causal estimates of the effects of delayed kindergarten entry on achievement outcomes by exploiting a policy change in the birthdate enrollment cutoff in North Carolina that forced children born in a six-week window to redshirt. Using multiple peer group comparisons, we identify impacts on achievement and gifted or disability identifications in third through fifth grades. Delayed entry provides small benefits to students’ math and reading achievement, and reduced identification of a disability; these impacts operate through cohort position and age advantages, and not from hold-out year experiences. Redshirting differentially benefitted low-income students, but further disadvantaged non-white students.
This paper describes and evaluates a web-based coaching program designed to support teachers in implementing Common Core-aligned math instruction. Web-based coaching programs can be operated at relatively lower costs, are scalable, and make it more feasible to pair teachers with coaches who have expertise in their content area and grade level. Results from our randomized field trial document sizable and sustained effects on both teachers’ ability to analyze instruction and on their instructional practice, as measured the Mathematical Quality of Instruction (MQI) instrument and student surveys. However, these improvements in instruction did not result in corresponding increases in math test scores as measured by state standardized tests or interim assessments. We discuss several possible explanations for this pattern of results.
Research suggests that earning college credits in high school increases the likelihood of postsecondary progress and graduation. In this study, we measure the impact of dual enrollment in high school and college courses through the College Now (CN) program on college enrollment for students in New York City. We use a regression discontinuity design (RDD) that estimates the causal local average effect of the treatment — eligibility for dual enrollment in college classes while in high school — on college enrollment. We find that being eligible for CN leads to a 7% point increase in the likelihood of college enrollment and an 8.6% point increase in the likelihood of enrollment in a four-year college. Students who were eligible for CN and enrolled in CN were 20% points more likely to enroll in college.
The Milwaukee Parental Choice Program (MPCP), the first modern private school choice program in the United States, has grown from 341 students attending 7 private schools in 1990 to 27,857 students attending 126 private schools in 2019. The MPCP has been subject to extensive study focused largely on student performance on standardized tests. This study presents new data on the college enrollment, persistence, and graduation of MPCP and MPS students who were tracked over 12 years beginning in 2006. MPCP participants are compared with a matched sample of MPS students who lived in the same neighborhood and had similar demographic characteristics and test scores at the beginning of the study. The collective evidence in this paper indicates that students in the MPCP program have greater educational attainment than the comparison group, as measured by college experience and outcomes. Most of the college attainment benefits of the MPCP are clear for both students who were in ninth grade at the beginning of the study, for whom positive attainment effects have previously been reported, and students who were initially enrolled in grades three through eight, who we examine here for the first time. As of 2018, MPCP students have spent more total years in a four-year college than their MPS peers. The MPCP students in the grade three through eight sample attained college degrees at rates that are statistically significantly higher than their matched MPS peers.