Randomized experiments are often considered the strongest designs to study the impact of educational interventions. Perhaps the most prevalent class of designs used in large scale education experiments is the cluster randomized design in which entire schools are assigned to treatments. In cluster randomized trials (CRTs) that assign schools to…

Used meta-analysis of 60 studies to investigate the direction and magnitude of the relationships between a variety of school inputs and student achievement. Analysis finds a broad range of resources to be positively related to academic achievement and further suggests that moderate increases in spending may be associated with significant increases…

This article extends both the logic and the statistical procedures used in a recent analysis of Hyde's data on gender differences in cognitive abilities by Rosenthal and Rubin. The logic of a "model fitting" approach to meta-analysis is described. Relevant statistical procedures and goodness-of-fit tests are illustrated. (Author/BS)

The use of statistical methods to combine the results of independent empirical research studies (metanalysis) has a long history, with work mainly divided into tests of the statistical significance of combined results and methods for combining estimates across studies. Methods of metanalysis and their applications are reviewed. (SLD)

Presents reanalysis of data from earlier reviews, particularly those by Hanushek (1981, 1986, 1989, 1991), on relationship between educational resource input and school outcomes when controlling for student characteristics such as socioeconomic status. Using different synthesis methods, analysis shows a positive relationship between resources and…