In Chicago, over a quarter of students fail at least one semester of algebra in their ninth grade year, and only 13% of students who fail both semesters of Algebra I in ninth grade graduate in 4 years. Offering credit recovery options is one strategy to deal with high failure rates. The primary goal of credit recovery programs is to give students…

When using time series accountability data to evaluate system-wide education policies, concurrent changes often pose threats to internal validity. The standard difference-in-differences (DID) method resorts to a non-equivalent comparison group whose average outcome change is due to such confounding. This strategy relies on the strong assumption…

The consequences of failing core academic courses during the first year of high school are dire. More students fail courses in ninth grade than in any other grade, and a disproportionate number of these students subsequently drop out (Herlihy, 2007). As shown in Chicago and elsewhere, academic performance in core courses during the first year of…

The purpose of this research is to study the long-run impacts (i.e. on educational attainment) of a freshman math intervention called "double-dose algebra". The intervention was conducted in 2003 and 2004 within the Chicago Public Schools (CPS), a large, poor urban school district. In response to low passing rates in 9th grade algebra,…

The consequences of failing core academic courses during the first year of high school are dire. In the Chicago Public Schools (CPS), only about one-fifth of off-track freshmen--students who fail more than one semester of a core academic course and/or fail to earn enough credits to be promoted to 10th grade--graduate high school, compared with…

Algebra is considered a key gatekeeper for higher-level mathematics course-taking in high school and for college enrollment (Adelman, 2006; Gamoran & Hannigan, 2000). Yet, algebra pass rates are consistently low in many places (Higgins, 2008; Ham & Walker, 1999; Helfand, 2006), including Chicago Public Schools (CPS). This is of particular…

This study evaluates a curriculum policy that required college preparatory coursework for all students, using data from Chicago Public Schools (CPS). Beginning in 1997, CPS ended remedial coursework and required all students to complete a college-preparatory course sequence for graduation. In this study, the authors constrain their analysis to the…

There is a national movement to universalize the high school curriculum so that all students graduate prepared for college. The present work evaluates a policy in Chicago that ended remedial classes and mandated college preparatory course work for all students. Based on an interrupted time-series cohort design with multiple comparisons, this study…