This article presents a meta-analysis of studies of the effects of special homogeneous classes versus regular heterogeneous classes on achievement and nonachievement outcomes of gifted students. The principal findings indicate that the gifted students in special classes achieved more than their gifted counterparts in regular classes. (Author/IAH)

Using a "review of reviews" methodology, this literature synthesis on stimulant use with children with attention deficit disorder compared three reviews from each of three review types (traditional, meta-analytic, general audience). A consensus was found to exist about the expected benefits and the acknowledged limitations of stimulant medication.…

Power analysis of studies in Greene's meta-analysis of bilingual education programs found that many studies of the past 30 years were statistically weak and uninterpretable. Effect size analysis of Thomas and Collier's 15-year study found that their longitudinal model best explains 30 years of bilingual education research and can serve as a…

Background: The objectives of this review were to examine the overall efficacy of music therapy for children and adolescents with psychopathology, and to examine how the size of the effect of music therapy is influenced by the type of pathology, client's age, music therapy approach, and type of outcome. Method: Eleven studies were included for…

Provides a comprehensive meta-analysis of gender differences in aggression; offers estimates of the magnitude of differences; provides a developmental analysis of effects for all ages for which data are available; and includes a total of 143 studies. Basic techniques of meta-analysis are presented and then applied to analyze studies of gender…

Possible relationships between five test examiner characteristics (gender, race, tenure, experience as a test administrator, and experience as a test developer or scorer) and six student achievement scores (reading, writing, language usage, mathematics, science, and social studies) were studied at the school level in a statewide assessment. The…

This secondary analysis of De Wolff and van IJzendoorn's (1997) meta-analysis of maternal behavior and attachment reexamined their conclusion that sensitivity was not a preferred predictor of attachment security. The meta-analysis included 66 studies with 123 effect sizes sorted through a combination of personal choice and homogeneity analysis…

Adherence to the arbitrary 0.05 level of significance as a benchmark for decisions about publishing research largely accounts for the popularity of one-tailed hypothesis tests. Effect size estimates, accompanied by confidence intervals or exact two-tailed probabilities, are generally more compatible with the growing meta-analytic view of social…

Speculation about the state of research if metanalysis is pushed to its logical extreme (if at least 1 metanalysis had been conducted on every independent, dependent, and mediating variable for which at least 2 independent effect sizes could be computed) yields 10 effects that could be expected. (SLD)

Describes a quantitative study that examined the effectiveness of interactive video (IV) instruction by using a meta-analytic research review of the literature from 1978 to the present. Effect size as a function of study variables is examined, and test of homogeneity on effect sizes is discussed. (25 references) (LRW)

The prevailing view in popular culture and the psychological literature is that White women have greater body dissatisfaction than women of color. In this meta-analysis, 6 main effect sizes were obtained for differences among Asian American, Black, Hispanic, and White women with a sample of 98 studies, yielding 222 effect sizes. The average d for…

Instructional research is synthesized, using categories specific and functional enough to provide guidance for classroom practice. The opening chapter presents a theory for conducting a theory-based meta-analysis of the research on instruction, outlining a theory that involves four elements of human information processing: the self-system, the…

Effect sizes have been increasingly emphasized in research as more researchers have recognized that: (1) all parametric analyses (t-tests, analyses of variance, etc.) are correlational; (2) effect sizes have played an important role in meta-analytic work; and (3) statistical significance testing is limited in its capacity to inform scientific…

While the aptitude treatment interaction (ATI) approach to educational measurement emphasizes establishing salient learner characteristics, systematic formative evaluation provides ongoing evaluation for instructional program modification. Systematic formative evaluation appears more tenable than ATI for developing individualized instructional…

A meta-analysis of home visiting programs (K = 12, N = 2869) examined differences in the effects of home visitor programs for at-risk families on maternal behavior. Studies selected included only peer-reviewed publications and evaluations with a control group design. Although effect sizes varied, programs with more frequent visitation had higher…