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Discovering the Scientist Within offers an utterly unique approach to the research methods course. Rather than taking students through statistical methods one at a time, the authors provide a series of realistic and engaging case studies with each design-focused chapter presenting a single study start to finish. View More

Discovering the Scientist Within

Selecting the Optimal Rotation in Exploratory Factor Analysis

When factors are first extracted through Exploratory Factor Analysis, the location of the factors is arbitrary.  Therefore, researchers rotate the factors to make them more meaningful and interpretable.  SPSS and other programs provide several methods of rotating factors.  This free Excel sheet helps students pick the best rotation based upon number of complex items (this should be low), hyperplanar count (this should be high), and extent of correlation among the factors (other things being equal, this should be low).

Author: Kimberly A. Barchard

Posted: Friday, October 28, 2016