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Computing and evaluating factor scores.

J W Grice1

  • 1Psychology Department, Oklahoma State University, Stillwater, 74078, USA. jgrice@okstate.edu

Psychological Methods
|January 10, 2002
PubMed
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Factor score indeterminacy is a common issue in psychological research. This study introduces methods to assess and report factor score indeterminacy, improving the reliability of factor analysis results.

Area of Science:

  • Psychology
  • Psychometrics
  • Statistical Modeling

Background:

  • Factor score computation methods stem from debates on the common factor model's indeterminacy.
  • Many researchers are unaware of factor score indeterminacy and its implications.
  • Existing methods for factor score computation may be problematic due to indeterminacy.

Purpose of the Study:

  • To review the history and nature of factor score indeterminacy.
  • To present novel computer programs for assessing indeterminacy and evaluating factor scores.
  • To emphasize the importance of assessing and reporting factor score indeterminacy in research.

Main Methods:

  • Historical review of factor score indeterminacy.
  • Development and demonstration of new computer programs for factor score analysis.

Related Experiment Videos

  • Application of methods to data from the Wechsler Intelligence Scale for Children-Third Edition.

    • Main Results:

    • Factor score indeterminacy can be assessed using the presented programs.
    • Different factor score computation methods yield varying results.
    • The degree of indeterminacy can impact the validity of factor scores.

    Conclusions:

    • Factor score indeterminacy should be routinely assessed and reported in exploratory factor analysis.
    • Thorough evaluation of factor scores is crucial before their use in further statistical analyses.
    • Awareness and assessment of factor score indeterminacy enhance the rigor of psychological research.