Empirical evidence shows that disadvantaged students tend to have less-qualified and less-effective teachers than their more-advantaged peers. These teacher quality gaps (TQGs), which have existed for decades and across many measures of student disadvantage and teacher quality, are an important factor explaining student achievement gaps between…

This policy brief reviews evidence about the extent to which disadvantaged students are taught by teachers with lower value-added estimates of performance, and seeks to reconcile differences in findings from different studies. We demonstrate that much of the inequity in teacher value added in Washington state is due to differences across different…

Using testing data from 2.1 million students in 10,000 schools in 49 states (plus D.C.), we investigate the role of remote and hybrid instruction in widening gaps in achievement by race and school poverty. We find that remote instruction was a primary driver of widening achievement gaps. Math gaps did not widen in areas that remained in-person…

We use longitudinal data from North Carolina and Washington to study the extent to which four processes--teacher attrition from each state workforce, teacher mobility within districts, teacher mobility across districts, and teacher hiring--contribute to "teacher quality gaps" (TQGs) between advantaged and disadvantaged schools. We first…

We study a teacher incentive policy in Washington State that awards a financial bonus to National Board Certified Teachers who teach in high-poverty schools. We study the effects of the policy on student achievement and teacher staffing using a regression discontinuity design that exploits the fact that eligibility for the bonus is based on the…

We investigate factors influencing student sign-ups for Washington State's College Bound Scholarship (CBS) program. We find a substantial share of eligible middle school students fail to sign the CBS, forgoing college financial aid. Student characteristics associated with signing the scholarship parallel characteristics of low-income students who…

There is mounting evidence of substantial "teacher quality gaps" (TQGs) between advantaged and disadvantaged students, but practically no empirical evidence about their history. We use longitudinal data on public school students, teachers, and schools from two states--North Carolina and Washington--to provide a descriptive history of the…

Effective teachers make a real difference for student learning. But research shows that both in Massachusetts and nationwide, academically struggling students and those from historically low performing subgroups are less likely to be assigned to the teachers who are most likely to generate strong results. This results in missed opportunities to…

We investigate patterns of teacher mobility in districts with different collective bargaining agreement (CBA) transfer provisions. We use detailed teacher-level longitudinal data from Washington State to estimate the probability that teachers of varying experience and effectiveness levels transfer out of their schools to another school in the…

We use panel data in Washington State to study the extent to which teacher assignments between fourth and eighth grade explain gaps between advantaged and disadvantaged students--as defined by underrepresented minority status (URM) and eligibility for free or reduced price lunch (FRL)--in their eighth grade math test scores and high school course…

There is mounting evidence of substantial "teacher quality gaps" (TQGs) between advantaged and disadvantaged students, but practically no empirical evidence about their history. We use longitudinal data on public school students, teachers, and schools from two states--North Carolina and Washington--to provide a descriptive history of the…

California is experiencing one of its most severe teacher shortages in two decades. Budget cuts and layoffs resulting from the recession contributed to a steep decline in the number of teachers in California, falling from a high of 310,362 teachers in the 2007-08 school year to 283,836 four years later. Recent efforts, including Proposition 30 and…

California, like many states, is experiencing significant challenges with teacher staffing. Numerous headlines over the last few years highlight the difficulties that the state faces in developing, recruiting, and, ultimately, hiring enough teachers (Blume, 2016; Apodaca, 2017; Calefati, 2017; Carver-Thomas & Darling-Hammond, 2017; Times…

An increasingly prevalent type of program designed to address college attainment gaps are state-based financial aid programs that offer low-income middle school students a promise of funding for college in exchange for making a pledge to do well in high school, be a good citizen and not be convicted of a felony, and apply for financial aid to…