Testing a Multidimensional Factor Structure of the Self-Control Scale

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Abstract
The Self-Control Scale (SCS) is one of the most widely used measures in the clinical, personality, and social psychology fields. It is often treated as unidimensional, even though no research supports such a unidimensional factor structure. We tested the factor structure in an undergraduate sample as well as a community sample used for additional confirmatory analyses. Factors from the best-fitting confirmatory models were correlated with putatively related and distinct constructs to assess their (dis)similarities. Consistent with hypotheses, the best-fitting factor structure consisted of multiple, correlated factors; however, none of the factor solutions met pre-specified fit criteria. Several additional analyses were conducted beyond the preregistered analyses to find a reasonably fitting factor solution. Ultimately, study findings support a two-factor solution using the items of the Brief Self-Control Scale. Results are discussed for the full 36-item scale as well as the brief, 13-item scale. We conclude with lessons learned from a Registered Report focused on factor analysis.

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