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Direct linkSpybrook, Jessaca – Journal of Experimental Education, 2014
The Institute of Education Sciences has funded more than 100 experiments to evaluate educational interventions in an effort to generate scientific evidence of program effectiveness on which to base education policy and practice. In general, these studies are designed with the goal of having adequate statistical power to detect the average…
Descriptors: Intervention, Educational Research, Research Methodology, Statistical Analysis
Unstructured Collaboration versus Individual Practice for Complex Problem Solving: A Cautionary Tale
Yetter, Georgette; Gutkin, Terry B.; Saunders, Anita; Galloway, Ann M.; Sobansky, Robin R.; Song, Samuel Y. – Journal of Experimental Education, 2006
The authors used an experimental design to compare the effectiveness of unstructured collaborative practice with individual practice on achievement on a complex well-structured problem-solving task. Participants included postsecondary students (N = 257) from a liberal arts college serving primarily nontraditional students and from 2 state…
Descriptors: State Universities, Statistical Analysis, Research Design, Heuristics
