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J Res Pers. 2010 Aug 01;44(4):407-420. doi: 10.1016/j.jrp.2010.03.002.

Item Selection, Evaluation, and Simple Structure in Personality Data.

Journal of research in personality

Erik Pettersson, Eric Turkheimer

Affiliations

  1. University of Virginia.

PMID: 20694168 PMCID: PMC2914336 DOI: 10.1016/j.jrp.2010.03.002

Abstract

We report an investigation of the genesis and interpretation of simple structure in personality data using two very different self-reported data sets. The first consists of a set of relatively unselected lexical descriptors, whereas the second is based on responses to a carefully constructed instrument. In both data sets, we explore the degree of simple structure by comparing factor solutions to solutions from simulated data constructed to have either strong or weak simple structure. The analysis demonstrates that there is little evidence of simple structure in the unselected items, and a moderate degree among the selected items. In both instruments, however, much of the simple structure that could be observed originated in a strong dimension of positive vs. negative evaluation.

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