“…. Other research, however, has supported such a construct (Foster & Gade, 1973;Nafziger, Holland, Helms, & McPartland, 1974;O'Neil & Magoon, 1977;O'Neil, Magoon, & Tracy, 1978). In addition, Holland has shown that the consistency of a student's personality pattern, as measured by the Vocational Preference Invent09 (VPI) profile, is positively related to the stability of a student's vocational choice or choice of a major field over I-to-4-year intervals (Holland, 1963(Holland, , 1968).…”