Extending Multivariate G-theory Designs to Incorporate Congeneric Relationships and Assess Subscale Added-Value

• In Event: Reliability and Scoring

Abstract

We demonstrate how structural equation models can extend multivariate G-theory designs to allow for congeneric relationships among scores. Results revealed that generalizability coefficients and subscale added-value indices for persons × items × occasions congeneric designs consistently exceeded those for traditional multivariate generalizability theory designs at both composite and subscale levels.

Authors

• Walter Vispoel, University of Iowa

• Hyeryung Lee

• Tingting Chen, University of Iowa