Focuses on meta-analysis in educational research. Contends that, if significant meta-analysis results are overrepresented through selective sampling, hucksterism in form of sampling bias exists. Explains use of follow-up test, the fail-safe N. Includes tables constructed to assist researchers and practitioners to estimate, without calculation,…

Focusing on psychotherapy research, illustrates methods for studying mediator and moderator variables in meta-analysis, discusses their advantages and disadvantages, and shows how inclusion of these variables can change interpretation of meta-analytic results. Notes that therapeutic orientation may make significant difference to outcome but only…

Introduces statistical and procedural methods of meta-analysis, and explains how to interpret the findings of meta-analytic studies currently appearing throughout the social science literature. Includes overview of meta-analysis and discussion of seven steps used in conducting a meta-analysis. (Author/NB)

This special issue deals with the identification and remediation criteria/practices employed in several countries regarding learning disabilities (LD). An analysis of the identification criteria suggests that most countries follow early law mandates of the United States (e.g., PL 94-142) regarding the definition of the disorder and use the…

Tells how to conduct a meta-analysis study, and refers readers to information about refinements of the techniques. A simple meta-analysis is presented. Describes three fundamental stages to conducting a meta-analysis: (1) literature review; (2) calculation of effect sizes; and (3) analysis of data. (Author/NB)

Demonstrates that magnitude-of-effects (ME) estimates vary in susceptibility to sample-size bias depending on whether they are directional or nondirectional estimates. Also demonstrates that study characteristics that influence size of ME estimates can be explicitly taken into account when comparing studies. Emphasizes need to consider study…

The use of measures of magnitude of effect has been advocated as a way to go beyond statistical tests of significance and to identify effects of a practical size. They have been used in meta-analysis to combine results of different studies. Describes problems associated with measures of magnitude of effect (particularly study size) and…

Summarizes and critiques Asarnow's 1988 review of 24 longitudinal studies identifying environmental factors and individual vulnerability important to development of schizophrenia. Found Asarnow's analysis well conducted but summary should have addressed longitudinal research design. Concludes that identifiable behavior and family interaction…

Religion and spirituality are important aspects of multicultural competency for therapists to consider given the religious culture in America. Researchers have found that more than 90% of Americans claim either a Protestant or Catholic religious affiliation (Keller, 2000), 40% of Americans attend religious services on a weekly basis, and more than…

Provides narrative and meta-analytic review of research on Carkhuff's Human Resource Training/Human Resource Development (HRT/HRD), Kagan's Interpersonal Process Recall (IPR), and Ivey's Microcounseling (MC) programs, all with graduate-level counselor trainees. Each program's accomplishments are summarized, and future directions for training and…

Examined Biological Sciences Curriculum Study (BSCS) programs showing how they compare to each other and other science programs and how various student groups performed. Student comparisons were made by sex, IQ, ability grouping, and socioeconomic status. Teacher background, school size and location were also examined. Summary and recommendations…