Answers James Stiff's criticism of the Elaboration Likelihood Model (ELM) of persuasion. Corrects certain misperceptions of the ELM and criticizes Stiff's meta-analysis that compares ELM predictions with those derived from Kahneman's elastic capacity model. Argues that Stiff's presentation of the ELM and the conclusions he draws based on the data…

To identify variables influencing the acquisition of teaching skills, 26 studies addressing the acquisition of the generic skill of questioning were synthesized through meta-analysis. The training variables considered include general effect, method, duration, number of sessions, experience and academic certification levels of trainees, and…

Major issues in models of student learning (Carroll's, Bloom's, and Glaser's models) are discussed, and a model that retains the salient features of these models (time, prior learning, and learning processes) is outlined. The final model also addresses other facets having unique effects on achievement and interactions among facets. (TJH)

Used meta-analyses to determine the effectiveness of behavioral marital therapy (BMT) and premarital intervention (BPI) studies. Found gains that were generally maintained over time, and equal for couples in Europe and the United States. Demonstrated higher effect sizes for comparisons of BMT with no treatment placebo control groups, whereas the…

Review of research of between-class and within-class ability grouping on the achievement of elementary students. Ability grouping appears most effective for specific subjects with students remaining in heterogeneous classes most of the day. Cross-grade assignment for selected subjects can increase achievement. (SLD)

Slavin's 1987 review of research of between- and within-class ability grouping on achievement of elementary students is discussed, and its assumptions examined. It is suggested that recent theory and research make the Slavin review most useful from the perspective of historical analysis. (SLD)

The Early Intervention Research Institute (EIRI) reviewed extensive data reported by early intervention projects. Among surprising findings were that half-day programs produced as many gains as full-day programs, and programs which expected parent involvement were not more effective than those which did not. Current EIRI research efforts are…

Reviews evaluation studies, box-score reviews, and meta-analyses on effectiveness of computer-assisted instruction (CAI) conducted from the 1960s through 1980s, using student achievement as a dependent measure. Conclusions are drawn as to CAI's effectiveness with regard to social and academic achievement and a cost analysis of CAI is provided. (29…

This article discusses the circumstances under which unequal sample size in the two-group study can arise and result in an attenuated point-biserial correlation. Formulas are provided for correcting the coefficient either directly or through the mediation of relevant statistics found in studies where the coefficient itself is not reported.…

This paper is concerned with the construction of effect size standard errors in situations where the effect sizes are independent but the data have likely been sampled from non-normal distributions, and possibly for different studies, from different families of non-normal distributions. Asymptotic distribution-free estimators are provided for two…

Longstreth's critique of Jensen's research on the relationship of IQ to individual differences in visual reaction time (RT), measured in the Hick paradigm, is said to have numerous errors of fact and interpretation, some trivial and some of theoretical importance. (Author/LMO)

In order to better understand the influence of the organizational setting on evaluation, this conceptual framework was developed and tried out in a meta evaluation of innovatory educational programs in Holland. Four components are explained--contigency factors, organization structure, policy-making, and evaluation research--and a checklist is…

Meta analysis was used on 18 studies of elementary students that tested the effects of teacher expectation on pupil IQ. Data supported the view that the better teachers know their pupils at the time of expectancy induction, the smaller the treatment effect. Additional findings and implications for further research are discussed. (BS)

A meta-analysis of studies examining the criterion validity of student course evaluation data is discussed. Results indicate that the overall size of effect is not only highly significant, but also very meaningful when analyzed in relation to enhancing the likelihood of making more accurate tenure decisions. (Author/MLW)

Conclusion about site-specific determinants of educational outcomes of the controversial longitudinal evaluation of the Follow Through programs (1976) are challenged again by reexamining the Direct Instruction model data. Reanalysis confirms earlier critiques and supports more recent research funding on the relationship between types of…