Project Activities
The outcomes provide after-the-fact adjustments (approaching corrections) to reported results where the original researcher has failed to take into account the effect of clustering on the precision of estimates used in significance testing, and calculations of power and intervention effect sizes. The adjustments vary by a variety of factors, including the actual clustering, the nature of the dependent variable, and the hierarchical nature of the research design.
People and institutions involved
IES program contact(s)
Products and publications
Publications:
Journal article, monograph, or newsletter
Borenstein, M., Hedges, L.V., Higgins, J.T., and Rothstein, H.R. (2010). A Basic Introduction to Fixed-Effect and Random-Effects Models For Meta-Analysis. Research Synthesis Methods, 1(2): 97-111.
Hedges, L.V., Hedberg, E.C., and Kuyper, A.M. (2012). The Variance of Intraclass Correlations in Three- and Four-Level Models. Educational and Psychological Measurement, 72(6): 893-909.
** This project was submitted to and funded as an Unsolicited application in FY 2008.
Questions about this project?
To answer additional questions about this project or provide feedback, please contact the program officer.
