It also demonstrates the advantages of theory-based item analysis.Ĭonstruct validity is an important criterion of measurement validity. The study shows that the application of the suggested procedure leads to a deeper understanding of latent constructs. We found that the new procedure produced important suggestions concerning five subdimensions of the ASTI that were not identifiable using exploratory methods.
A content-validity analysis of the ASTI items was used as the basis of psychometric analyses using multidimensional item response models ( N = 1215). To illustrate the mixed-methods content-scaling-structure (CSS) procedure, we analyze the Adult Self-Transcendence Inventory, a self-report measure of wisdom (ASTI, Levenson et al., 2005). Here, we present a mixed-methods procedure for improving the precision of construct definitions, determining the content validity of items, evaluating the representativeness of items for the target construct, generating test items, and analyzing items on a theoretical basis.
The valid measurement of latent constructs is crucial for psychological research.
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