Presents situations in which researchers can use the general linear model to uncover reasons for discrepant effect-size results of meta-analysis of similar studies. Situations include similarly labeled treatments or participants differing in important ways, treatment effectiveness varying by subject aptitude or situational variables, research…

Pooled data from previous studies in which autistic, mentally handicapped, and normal young children had been tested on theory of mind tasks. Found that normal children at a verbal mental age of four years, but autistic children at a verbal mental age of more than nine years, had a 50% chance of passing the theory of mind tests. (BC)

Discusses recent research findings, which do not appear to support the idea that boys' superiority in mathematics is biological. Cerebral lateralization studies are discussed; meta-analysis showed that the gender gap has narrowed, casting doubt on the importance of innate ability determining mathematics performance. Discusses implications of…

A review of 45 published studies yielded 518 pairs of response times (RTs) consisting of a mean RT for persons with mental retardation and the corresponding mean RT for persons without mental retardation. RTs of individuals with mental retardation increased linearly as a function of RTs for persons without mental retardation in corresponding…

Recommends that analysts (1) use conventional meta-analytic statistics when testing for moderator variables; (2) perform tests between mean effect sizes; and (3) continue to perform model tests in meta-analyses for which study outcomes are already consistent if they have theoretical expectations about moderators. (RS)

Presents a classification system for developmental psychology that was constructed by means of a survey of articles published in the journals "Child Development" and "Developmental Psychology" in 1969 and 1987. The survey found that eight empirical questions encompassed the full range of empirical interests expressed by…

Reviewed 252 empirical studies of psychotherapy from "Journal of Consulting and Clinical Psychology" in 1967/1968, 1977/1978, and 1987/1988. Found main trend to be decline in theory-guided and rise in pragmatic, clinically oriented research. Discusses disadvantages of purely empirical approach to psychotherapy research and makes…

Explores how magazine type has been defined and on what criteria categories of magazines have been based in communication research. Observes 4 definition strategies in 223 research reports published between 1977 and 1991. Critiques them on their apparent ability to meet five generally accepted standards for the usefulness of scientifically…

Argues that historians have often neglected ideological forces that have shaped their work. Offers a meta-analysis of the ideological dimensions of historical scholarship. Proposes a social psychoanalytical approach to history. Argues that a recognition of the connection between past and present would expose the ties between history and politics.…

Argues that managers write within a unique context, and, thus, much of what is known about writing in general or professional writing may not apply. Reviews the literature on managerial writing, finding a paucity of research and a heavy emphasis on survey methodology. Offers six general research questions for future research. (SR)

A comprehensive synthesis of experimental intervention studies that have included students with learning disabilities was based on 180 studies. Results support the pervasive influence of cognitive strategy and direct instruction models for remediating the academic difficulties of children with learning disabilities. (SLD)

A review of international statistics indicates that youth suicide rates are not increasing in all nations. Furthermore, it is suggested that the quality of life in nations is improving and that this improvement itself may increase the risk of suicide, especially in youth with narcissistic personality traits and antisocial personality disorder…

Reports results from a meta analysis of eight studies (from 1968 to 1982) that examined the effect of creative drama on the self-concept or self-esteem of school children. Finds no effects for creative drama on the self-concept of elementary school children under a variety of conditions. Suggests additional research for other affective and…

Youthful antisocial behavior is often viewed as a precursor to later violent behavior. Examines the assertion that aggressive reaction patterns in males over time approach the stability of intelligence by studying evidence from 82 reports of prospective studies. Analysis finds considerably more modest relationships between earlier antisocial…

Compares two meta-analyses of instructional interventions for students with learning disabilities conducted by Gersten and Baker, and Swanson, focusing on issues of grouping and reporting such studies and of treating differing outcome measures. Considers the identification of important instructional components in both meta-analyses. (JPB)