In this study, we meta-analyzed empirical research of the effectiveness of intelligent tutoring systems (ITS) on K-12 students' mathematical learning. A total of 26 reports containing 34 independent samples met study inclusion criteria. The reports appeared between 1997 and 2010. The majority of included studies compared the effectiveness of ITS…

Describes meta-analysis, a quantitative approach to conducting literature reviews. Illustrates the power of this technique by reporting the quantitative effects of cooperative learning on chemistry achievement in high school and college classes. (Contains 32 references.) (WRM)

Computer-based instruction (CBI) studies analyzed by Kulik et al. were examined to explore the validity of competing claims about the computer's contribution to measured achievement gains. Results suggest achievement gains found in CBI studies are overestimated and are due to uncontrolled but robust instructional methods embedded in CBI…

Several available summaries of research on coaching for the Scholastic Aptitude Test (SAT) are described, and their principal findings are discussed. Several additional studies are reviewed, and their findings are related to the summaries. Overall, the effects of coaching may be less than many students suppose. (SLD)

A brief survey of several comprehensive reviews of studies of the effects of desegregation on black achievement makes it clear that the experts are still in disagreement, and it is in the hope of finally bringing about a consensus on the subject that the National Institute of Education (NIE) has established a representative panel of experts to…

The decision by the National Institute of Education panel on the effects of school desegregation to select (for meta-analysis) a small group of preferred studies based upon criteria chosen in advance of examining the studies was, in principle, a mistake. One usually cannot know until the data have been examined which of several competing…

The focus of this paper is on the methodology used in analyzing studies on the effects of school desegregation on black achievement. The paper also addresses a number of substantive issues, including the overall effectiveness of school desegregation, the impact of type of achievement (math or reading), and time of desegregation (early or later…

This paper analyzes 19 studies that were considered by the National Institute of Education's panel on the effects of school desegregation in order to determine desegregation's effect on black achievement, black self-esteem, and racial relations. It is stated that, overall, the results show that reading achievement improves somewhat as a result of…