Running head: REVISITING CARROLL 1 Please use the following citation when referencing this work: Benson, N. F., Beaujean, A. A., McGill, R. J., & Dombrowski, S. C. (2018). Revisiting Carroll’s survey of factor-analytic studies: Implications for the clinical assessment of intelligence. Psychological Assessment. Advance online publication. doi: 10.1037/pas0000556 ©American Psychological Association, 2018. This paper is not the copy of record and may not exactly replicate the authoritative document published in the APA journal. Please do not copy or cite without author’s permission. The final article is available, upon publication, at: 10.1037/pas0000556 Revisiting Carroll’s Survey of Factor-Analytic Studies: Implications for the Clinical Assessment of Intelligence Nicholas F. Benson and A. Alexander Beaujean Baylor University Ryan J. McGill William & Mary Stefan C. Dombrowski Rider University Author note Correspondence concerning this article should be addressed to Nicholas F. Benson, Department of Educational Psychology, Baylor University, One Bear Place #97301, Waco, TX 76798. E-mail:
[email protected] REVISITING CARROLL 2 Abstract John Carroll's three-stratum theory—and the decades of research behind its development—are foundational to the contemporary practice of intellectual assessment. The present study addresses some limitations of Carroll’s work: specification, reproducibility with more modern methods, and interpretive relevance. We re-analyzed select datasets from Carroll's survey of factor analytic studies using confirmatory factor analysis as well as modern indices of interpretive relevance. For the majority of the datasets, we found that Carroll likely extracted too many factors representing Stratum II abilities. Moreover, almost all of factors representing Stratum II abilities had little-to-no interpretive relevance above and beyond that of general intelligence.