Inter-class ability grouping, i.e., assigning students to classes according to ability, is a controversial topic among parents, teachers, school administrators, and educational researchers. To determine the effects of inter-class ability grouping, a meta-analytic methodology was applied to 85 studies carried out in elementary and secondary…

Discusses results of a meta-analysis which sought to identify those variables found in research as strongly correlated with responsible environmental behavior. Variables found significant were: knowledge of issues; knowledge of action strategies; locus of control; attitudes; verbal commitment; and sense of responsibility. Proposes a model of…

Research syntheses of individual bivariate studies of the effects of specific predictor variables on student outcomes are considered. Walberg's nine-factor model of educational productivity is used to organize the syntheses and to identify aptitudinal, instructional, and environmental variables linked with student achievement and learning. (TJH)

Meta-analyses of past studies in numerous countries on factors influencing student outcomes are synthesized to examine educational productivity in the learning of science. A systems approach and Walberg's productivity model are used to perform the analyses. (TJH)

Examined extent to which infant-mother attachment could be predicted by mother interactional variables and infant proneness to distress. Meta-analysis indicated that sensitive, responsive maternal interaction predicted the security of attachment in Ainsworth and Wittig's "strange situation." Proneness to distress, a temperamental variable,…

Speculates about the outcomes of person-environment research and suggests how more successful research might be planned. Focuses on congruence effects and the value of meta-analysis. Suggests careful use of theory; attention to both environmental and personal assessment; identification of potent personal, environmental, and theoretical variables;…

Analyzes research in the area of children and the media and concludes that there is no support for the hypothesis that research questions relating to the subject are cyclical and follow a predictable pattern with the introduction of each new medium into the social system. (FL)

A meta-analysis of 79 research reports on the effects of calculator use on students' achievement and attitude in grades K-12 was conducted. At all but one grade level, students using calculators maintained or improved their paper-and-pencil skills. Suggestions for the classroom are included. (MNS)

Meta-analysis of research on a topic may exclude reports that do not present their results in a statistical form amendable to summarizing procedures used. This article illustrates how researchers can consider this aspect in computing statistics from their data. An illustration of how that can sometimes be done is presented. (Author/JAZ)

This meta-analysis found a minimal relationship between student achievement and educational expenditures except for direct instructional expenditures such as teachers' salaries and supplies. The amount spent is less vital than how the money is spent. (Compare gymnasium renovation with purchasing a new math program.) Nonschool factors may also be…

Presents meta-analysis of 54 articles and dissertations dealing with cognitive preferences. Information provided includes: test reliability; comparisons by country, grade level, gender, disciplines, and curricula; relationships between cognitive preferences and career orientation, science achievement, interest, and aptitude; and effect sizes.…

Results of synthesis of 1007 studies on the nature of learning disabilities using indicators in the linguistic, achievement, neuropsychological, and social-behavioral domains, indicated that 75% of learning disabled Ss could be differentiated from normal Ss but only 40% of the variance could be explained. Findings suggest the need for a…

Of 193 special education studies that included significant interaction effects based on a two-way analysis of variance design, only 9% interpreted the significant interaction consistent with the accurate explanation of a differential or joint effect. Instead, the cell means comparison procedure explained the interaction in 77% of the…

The meta analysis explored how measuring special education student progress toward long-term vs. short-term goals affects achievement outcomes. Results indicated that when progress toward long-term goals was measured, unbiased effect sizes were higher than on probelike outcomes; when progress toward short-term goals was measured, the reverse was…

Focuses on alternative paradigms to experimental inquiry useful to instructional systems researchers, including quasi-experimentation, meta-analysis, case study and ethnography, systems-based evaluation, and technique and model development. Each is discussed in terms of how it generally applies in the field and how it has been employed by…