“…A number of studies have attempted to conform to sound methodological requirements, but they have lacked a theoretical framework (Bayard & Pascal, 1954;Cole, Swensen, & Pascal, 1954;Dunham & Meltzer, 1946;Feldman, Pascal, & Swensen, 1954;Malamud & Render, 1939;Pascal et al, 1953;Schofield et al, 1954;Swensen & Pascal, 1954a, 1954b. This empirical emphasis characterizes the literature on prognosis and has been especially evident in the search for prognostic predictors among case history data.…”