A meta-analysis of school-based substance abuse prevention studies revealed that the mean proportion of subjects retained dropped from 81.4 percent at the three-month followup to 67.5 percent at the three-year followup. Researchers should interpret their results in light of these normative data and adopt second-effort strategies to reduce…

Presents a meta-analysis of research concerning the effectiveness of learner control in tutorial computer-assisted instruction based on a model of control as decision making plus information. Results are discussed which suggest that instructional design in learner control research should be based on model building rather than hypothesis testing.…

This meta-analysis found significant relationships between the experience of child sexual abuse and subsequent difficulties in psychological adjustment as measured by psychological symptomatology, depression, and self-esteem. Significant heterogeneity occurred across studies using different subject populations. Student samples consistently…

Reports results of meta-analysis to quantitatively summarize prior empirical research on alternative schools. Alternative education programs have a small overall effect on school performance, attitudes toward school, and self-esteem, but no effect on delinquency. Programs that target a specific population of at-risk youth produce larger effects…

Computed separate meta-analyses for 11 acculturation and adjustment classes: extroversion, self-esteem, locus of control, career, addiction, affective disorders, field independence, family conflict, anxiety/stress, intelligence, and psychosocial/health. Situation-specific associations were interpreted by integrating several models. Contains…

This meta-analytical review of seven studies examined the effectiveness of two intervention approaches--(1) behavior training strategies and (2) cognitive process strategies--to teaching social skills to learners with moderate to severe mental retardation. Although both approaches were effective, the cognitive process appeared more effective in…

Synthesizes quantitatively the experimental and quasi-experimental research in reading education and science education designed to test the effects of various instructional interventions on misconceptions. Identifies specific strategies or approaches that were effective in producing conceptual change. Notes that effective procedures had a common…

The article offers a critical inspection of the effectiveness of resource room programs in serving students with disabilities. Types of resource models (categorical, cross-categorical, noncategorical, specific skill, and itinerant) are described. Also noted are ethical considerations (segregation versus integration) and suggested improvements in…

Simulated data typical of those from meta analyses are used to evaluate the reliability, Type I and Type II errors, bias, and standard error of the meta-analytic procedures of Schmidt and Hunter (1977). Concerns about power, reliability, and Type I errors are presented. (SLD)

The overall effectiveness of patient education and counseling on preventive health behaviors was examined across published clinical trials, 1971-1994. The effectiveness of various approaches for modifying specific types of behaviors among patients without diagnosed disease was assessed. Multiple regression models indicated differences among…

Few differences in quality of life results are reported between different primary surgical treatments for breast cancer. Assumptions regarding the role of informed choice in psychosocial morbidity have not been substantiated, and fewer women than expected take an active role in decision making. Rigorous research is needed. (Author/EMK)

Locus of control is demonstrated as being an important individual belief for counselors to consider in their work. The influence of western cultural bias on research and therapy using locus of control is considered; areas of related theory are reviewed. Selected research is reviewed; implications for practitioners are discussed. (Author/EMK)

A meta-analysis for six weight-loss studies comparing the efficacy of cognitive-behavior therapy (CBT) alone to CBT plus hypnotherapy. Notes that "the addition of hypnosis substantially enhanced treatment outcome." Concludes that the addition of hypnosis to CBT for weight loss results in, at most, a small enhancement of treatment…

Reviews data from 13 major follow-up studies of youth with learning disabilities regarding postschool outcomes, postsecondary education, and employment, with attention to gender differences. Notes contradictions in the findings and identifies five methodological issues that appear to influence the conduct and interpretation of follow-up studies. A…

Discusses results from a meta-analysis that synthesized existing research comparing the effects of hypermedia versus other forms of instruction on students' achievement. Results suggest that the effects of using hypermedia are positive over non-hypermedia, but the effects may vary depending on what type of instruction hypermedia is compared to.…