Syntheses of research on educational programs have taken on increasing policy importance. Procedures for performing such syntheses must therefore produce reliable, unbiased, and meaningful information on the strength of evidence behind each program. Because evaluations of any given program are few in number, syntheses of program evaluations must…

There are numerous micro-level methods decisions associated with planning an impact evaluation. Quantitative synthesis methods can be used to construct an actuarial data base for establishing the likelihood of achieving desired sample sizes, statistical power, and measurement characteristics. (Author/BS)

Because research synthesis enables one to determine either the overall effectiveness of a particular treatment or the relative effectiveness of different types of treatments, it is becoming increasingly popular as a tool in program evaluation. Numerous methodological problems arise, however, when research synthesis is applied to studies conducted…

This paper compares the effects of desegregation on black achievement with the effects of other factors in the process of school learning that have recently been synthesized. The first section of the paper discusses techniques and guidelines for research synthesis, including meta-analysis. The second section presents a summary of the statistical…

The objective of this study was to evaluate quantitatively through meta analysis the effectiveness of child sexual-abuse prevention programs conducted over the past 10 years. Eighteen controlled studies evaluating such programs were coded for salient features and study outcomes and were then described using the common scale of effect size. An…