Each year, millions of Americans enroll in community colleges, seeking to develop the skills necessary to pursue a career or to transfer to a four-year institution. Community colleges serve large proportions of nontraditional, low-income, and minority students, and they are designed to provide access to a postsecondary education at a low or…

Formative assessments--assessments that measure what students do and do not know, so that teachers can modify their instruction accordingly--have been widely hailed as a potential vehicle for improving student achievement. Yet little solid research evidence exists about their effectiveness, especially in reform-rich school districts. This study…