Psychometric Properties of the Washington University Sentence Completion Test

Abstract

The psychometric properties of the two halves the Washington University Sentence Completion Test (SCT) Form 81 were examined by comparing the fit of structural equation models representing parallel, tau-equivalent, and congeneric properties. Data for these models were based on item-sum scores for the two halves of the SCT and eight measures of aspects of ego development, the construct purportedly measured by the SCT. The data were from a sample of 265 adults. The results suggest that the parallel model provides both a parsimonious and good fit for the data. These results provide empirical justification for those users of the SCe who have the need for shorter, interchangeable, and reliable forms of the test.

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