Methodological reviews have been used successfully to identify research trends and improve research practice in a variety of academic fields. Although there have been three methodological reviews of the emerging field of computer science education research, they lacked reliability or generalizability. Therefore, because of the capacity for a…

A meta-analysis encompassing all studies evaluating the impact of the Triple P-Positive Parenting Program on parent and child outcome measures was conducted in an effort to identify variables that moderate the program's effectiveness. Hierarchical linear models (HLM) with three levels of data were employed to analyze effect sizes. The results (N =…

Background: Active Support (AS) is an approach for promoting increased engagement in activities by people with intellectual disability (ID). Method: We critically reviewed the available research on AS, and added a commentary to help guide future research and practice. Results: Despite weaknesses in the research design of some studies, there is…

This article examines the statistical determinants of risk preference. In a meta-analysis of animal risk preference (foraging birds and insects), the coefficient of variation (CV), a measure of risk per unit of return, predicts choices far better than outcome variance, the risk measure of normative models. In a meta-analysis of human risk…

Use of meta-analysis to determine the important manipulable influences on school learning is illustrated. The methodology of meta-analysis discussed in relation to primary research methods include: (1) problem formulation; (2) sample selection; (3) data analysis; (4) data interpretation; and (5) data reporting. (SLD)

Blanton and Jaccard questioned the 4-test regression method used by Greenwald et al. to test a pure multiplicative theory. The present authors address Blanton and Jaccard's concerns with a combination of simulations and meta-analysis. Simulations show that (a) Blanton and Jaccard's preferred simultaneous regression method has a severe power loss…

Using computer simulation, the authors assessed the accuracy of J. E. Hunter, F. L. Schmidt, and H. Le's (2006) procedure for correcting for indirect range restriction, the most common type of range restriction, in comparison with the conventional practice of applying the Thorndike Case II correction for direct range restriction. Hunter et…

While many studies attest that some teachers contribute more to their students' academic growth than other teachers, research has not been very successful at identifying the specific teacher qualifications, characteristics, and classroom practices that are most likely to improve student learning. Unfortunately, this is just the information that…

A meta analysis was conducted of studies examining the relationship between grade point average and salary, with salary as the dependent variable. Results suggest that grades may be meaningful predictors of current salary and somewhat meaningful for starting salary. (SK)

Investigates, in two experiments, whether scores on the Role Category Questionnaire (RCQ) predicted the amount of psychological knowledge activated about others. Uses meta-analytic comparison of the results from the experiments to suggest that RCQ scores significantly predict the amount of conceptual psychological knowledge activated about others.…

The notion that chronic stress fosters disease by activating the hypothalamic-pituitary adrenocortical (HPA) axis is featured prominently in many theories. The research linking chronic stress and HPA function is contradictory, however, with some studies reporting increased activation, and others reporting the opposite. This meta-analysis showed…

The purpose of this study was to assess the degree to which behavioral intervention studies conducted with children diagnosed with autism operationally defined the independent variables (IVs) and evaluated treatment integrity (TI). The study replicated the criteria from Gresham, Gansle, and Noell (1993) and focused exclusively on research studies…

This comprehensive meta-analysis on teacher career trajectories, consisting of 34 studies of 63 attrition moderators, seeks to understand why teaching attrition occurs, or what factors moderate attrition outcomes. Personal characteristics of teachers are important predictors of turnover. Attributes of teachers' schools, including organizational…

The article reviews the current status (1993-2007) of psychosocial treatments for children and adolescents who have been exposed to traumatic events. Twenty-one treatment studies are evaluated using criteria from Nathan and Gorman (2002) along a continuum of methodological rigor ranging from Type 1 to Type 6. All studies were, at a minimum, robust…

This meta-analysis finds that parents report lower marital satisfaction compared with nonparents. There is also a significant negative correlation between marital satisfaction and number of children. The data suggest that marital satisfaction decreases after the birth of a child due to role conflicts and restriction of freedom. (Contains 30…