Tests Holland's assertion that stability of vocational choice can be predicted from: (a) congruence of personality with chosen career; (b) differentiation of personality; and (c) internal consistency of personality characteristics. The relationship of three constructs to stability of choice of college major was studied among 167 university…

Holland hypothesized that personality pattern consistency is related to vocational satisfaction, stability, and success. The viability of this key construct in Holland's theory of careers is examined in light of the expected relationship between level of consistency and frequency of occurrence of 2-letter Holland personality codes. Results are…