COGAT

https://pmc.ncbi.nlm.nih.gov/articles/PMC8685591/

Correlation between CogAT-7 and the WISC-IV composites range from .68 to .72 Latent factors for the WISC-III and the CogAT-6 correlated .87–Verbal; .67 nonverbal; total composite = .97 (Lohman, 2003a) and or the WJ-III and the CogAT-6, the general factors correlated at .82 (Lohman, 2003b) To establish it's measuring g

https://www.academia.edu/7330179/Distinguishing_verbal_quantitative_and_figural_facets_of_fluid_intelligence_in_young_students Using the intercorrelation matrix from Table 3, you can factor analyze it and extract ~0.927 first factor loading, on g as established above