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- Title
Evaluation of Parallel Analysis Methods for Determining the Number of Factors.
- Authors
Crawford, Aaron V.; Green, Samuel B.; Levy, Roy; Lo, Wen-Juo; Scott, Lietta; Svetina, Dubravka; Thompson, Marilyn S.
- Abstract
Population and sample simulation approaches were used to compare the performance of parallel analysis using principal component analysis (PA-PCA) and parallel analysis using principal axis factoring (PA-PAF) to identify the number of underlying factors. Additionally, the accuracies of the mean eigenvalue and the 95th percentile eigenvalue criteria were examined. The 95th percentile criterion was preferable for assessing the first eigenvalue using either extraction method. In assessing subsequent eigenvalues, PA-PCA tended to perform as well as or better than PA-PAF for models with one factor or multiple minimally correlated factors; the relative performance of the mean eigenvalue and the 95th percentile eigenvalue criteria depended on the number of variables per factor. PA-PAF using the mean eigenvalue criterion generally performed best if factors were more than minimally correlated or if one or more strong general factors as well as group factors were present.
- Subjects
SIMULATION methods in education; FACTOR analysis; MATHEMATICAL models; POPULATION; RESEARCH evaluation; STATISTICS; DATA analysis
- Publication
Educational & Psychological Measurement, 2010, Vol 70, Issue 6, p885
- ISSN
0013-1644
- Publication type
Article
- DOI
10.1177/0013164410379332