Then" and "now" - MMPI item differences over a 20-year spahttps://www.upress.umn.edu/test-division/bibliography/1960-1969/1969/loper_then_1969https://www.upress.umn.edu/logo.png
R.G. Loper and E.O. Swanson
(1969)
Then" and "now" - MMPI item differences over a 20-year spa