This article reports findings from a one-year evaluation of a kindergarten math enrichment program. A randomized design was used to assess the impact of High 5s on children's math skills, attitudes towards math, language ability, and executive function for a sample of kindergarten students in New York City. High 5s math clubs were designed to…

Although there is a large body of research on the effectiveness of supplemental instruction for college undergraduates, very little of it has focused on transfer students, who often confront additional sources of stress and historically perform more poorly than their native student counterparts. In this study, we investigated the effectiveness of…

In recent years, the largely punitive accountability measures imposed by the 2001 No Child Left Behind Act have given way to an emphasis on financial incentives. Although most policy interventions have focused primarily on linking teacher compensation to student test scores, several recent studies have examined the prospects for the use of…

Fifty-two low performing schools were randomly assigned to receive Spatial-Temporal (ST) Math, a supplemental mathematics software and instructional program, in second/third or fourth/fifth grades or to a business-as-usual control. Analyses reveal a negligible effect of ST Math on mathematics scores, which did not differ significantly across…

One of the modifications of the Elementary and Secondary Education Act (known as the No Child Left Behind Act) gave parents of low-income students in low-performing schools a choice of Supplemental Educational Services (SEdS). SEdS include tutoring or other academic support services offered outside the regular school day, at no charge to students…

This article presents evidence from a large-scale randomized controlled trial of the effects of four supplemental reading comprehension curricula (Project CRISS, ReadAbout, Read for Real, and Reading for Knowledge) on students' understanding of informational text. Across 2 school years, the study included 10 school districts, more than 200…

To compare the efficacy of instructional programs for adult learners with basic reading skills below the 7th-grade level, 300 adults were randomly assigned to 1 of 3 supplementary tutoring programs designed to strengthen decoding and fluency skills, and gains were examined for the 148 adult students who completed the program. The 3 intervention…

We provide data 3 to 4 years postintervention for four samples of English language learners from two sequential Grade 1 cohorts who received supplemental Grade 1 reading interventions in Spanish or English and for whom the language of instruction for intervention was matched with language of core reading instruction. Participants were 300 students…