The validity generalization model of meta analysis is described and modified for application to concurrent validity studies of motor behavior. An example is presented. (Author/MT)

Forty-three language intervention studies published during the 1970s were critically analyzed. Findings indicated that, in general, studies have not paralleled current psycholinguistic thinking. Only 34.8% of the studies were successful in increasing the communicative competence of their severely handicapped subjects. (Author/CL)

The meta-analysis of 22 studies on the effectiveness of computer assisted instruction (CAI) with exceptional children indicated that most studies reported CAI to be largely effective but that the result of calculating effect sizes indicated a moderate effect for CAI. (Author/DB)

Bases for recent allegations of sex bias in Kohlberg's theory of moral development are discussed, and studies comparing the development of moral reasoning across the sexes are reviewed. A meta-analysis supported the conclusion that the overall pattern is one of nonsignificant sex differences in moral reasoning. (Author/RH)

An action theoretic account of skill learning and skill use is offered as a useful heuristic for life-span developmental psychology. The version presented is one that is particularly prominent in industrial psychology in the German-speaking countries. (Author/RH)

The article suggests supplementing the social problem study groups and data synthesis approaches to building knowledge with emphasis on synthesizing reviews. Such reviews would strengthen the evaluation profession and promote utilization of the knowledge base generated by evaluators. (DWH)

The article proposes the viability of meta-analysis as a useful technique for integrating cross-study findings in early childhood special education. Issues of efficacy research, research integration, and the mechanics of conducting a meta-analysis are discussed, and efficacy studies are presented. (Author/CL)

Considered the relative effectiveness of drug therapy and psychotherapy in the treatment of unipolar depression in adults in a meta-analysis of 56 outcome studies. Evidence suggested that psychotherapy was superior to drug therapy. (Author/LLL)

This paper decribes the case survey method as a technique to overcome data collection problems and lack of integration of case studies. It outlines the roots of the method, distinguishes it from meta-analysis, describes the process with illustrations from an enrollment decline study, and analyzes its strengths and limitations. (BW)

Over the years, methodologists have been recommending that researchers use magnitude of effect estimates in result interpretation to highlight the distinction between statistical and practical significance (cf. R. Kirk, 1996). A magnitude of effect statistic (i.e., effect size) tells to what degree the dependent variable can be controlled,…

The first part of this paper examines using meta-analysis as a basis for making probabilistic statements about client outcome by revisiting Smith and Glass's (1977) classic paper concerning meta-analysis of psychotherapy outcome studies. While it may be argued that making probabilistic statements was not the primary purpose of meta-analysis, Smith…

Examines, through meta-analytic review, the connection between communication apprehension and communication behavior. Indicates a consistent negative relationship between the level of communication apprehension and communication skills, using a total of 36 studies involving 3742 participants. Finds that as a person becomes more apprehensive both…

Conducted a meta-analysis of the Kaufman Assessment Battery for Children (K-ABC) to ascertain the numbers of factors in the mental processing subtest of the K-ABC. Analyses yielded sequential and simultaneous processing factors, suggesting that the original K-ABC theory was not supported. (SLD)

Meta-analysis of 24 samples demonstrated overlap between Holland's vocational interest domains (measured by Self Directed Search, Strong Interest Inventory, and Vocational Preference Inventory) and Big Five personality factors (measured by Revised NEO Personalty Inventory). The link is stronger for five interest-personality pairs:…

Notes that because estimates of effect sizes are often either misreported or not reported at all, meta-analysts must use conversion formulas that allow estimates of effect sizes from information available. Focuses on formulas that convert "F" in ANOVA, a statistical test, to eta-squared, "d," or the correlation equivalent. Demonstrates that the…