We present a theory explaining the impact of ability tracking on academic performance based on grading policies. Our model distinguishes between initial ability, which is mainly determined by parental background, and eagerness to learn. We show that achievements of low ability students may be higher in a comprehensive school system, even if there…

This practice guide presents six evidence-based recommendations for college and university faculty, administrators, and advisors working to improve the success of students academically underprepared for college. Each recommendation includes an overview of the practice, a summary of evidence used in support of the evidence rating, guidance on how…