Non-comparability of the 1950 and 1956 Forms A of Cattell's 16PFhttps://www.upress.umn.edu/test-division/bibliography/1960-1969/1966/haertzen_non-comparability_1966https://www.upress.umn.edu/logo.png
C.A. Haertzen and I Horine
(1966)
Non-comparability of the 1950 and 1956 Forms A of Cattell's 16PF