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Download full textMeckstroth, Alicia; Resch, Alexandra; McCay, Jonathan; Derr, Michelle; Berk, Jillian; Akers, Lauren – Administration for Children & Families, 2015
This report describes in detail how researchers, policymakers, and program administrators can recognize opportunities for experiments and carry them out. Specifically, the report focuses on opportunistic experiments, defined as randomized controlled trials (RCTs) that study the effects of initiatives, program changes, or policy actions that…
Descriptors: Evidence Based Practice, Decision Making, Educational Experiments, Randomized Controlled Trials
Peer reviewedClark, Philip M. – Library and Information Science Research, An International Journal, 1984
Describes three methods of sample size determination, each having its use in investigation of social science problems: Attribute method; Continuous Variable method; Galtung's Cell Size method. Statistical generalization, benefits of cell size method (ease of use, trivariate analysis and trichotyomized variables), and choice of method are…
Descriptors: Comparative Analysis, Library Research, Research Methodology, Sample Size
Direct linkWeston, Rebecca; Gore, Paul A., Jr. – Counseling Psychologist, 2006
To complement recent articles in this journal on structural equation modeling (SEM) practice and principles by Martens and by Quintana and Maxwell, respectively, the authors offer a consumer's guide to SEM. Using an example derived from theory and research on vocational psychology, the authors outline six steps in SEM: model specification,…
Descriptors: Structural Equation Models, Goodness of Fit, Guides, Statistical Analysis
