This occupational classification for practical and theoretical use in vocational guidance, occupational research, vocational education, and social science rests upon a theory of personality types and includes 431 common occupations which comprise about 95 percent of the United States labor force. Each of the classification's six main classes…

Responds to Brown's critique of author's (Holland) theory of vocational choice. Discusses validation of theories in general and the validation of this theory in particular. Discusses common complaints about and current status of this theory. Evaluates and responds to Brown's advice. Speculates about future of career theory. (ABL)

Six scales representing Holland's six personality types were developed for the SVIB. The results of this study show that the Holland theoretical structure, when applied to the Strong data, provides a useful model for organizing the data. (Author)

Outlines J. L. Holland's (1985) typology of persons and environments, and summarizes the support for this theory in explaining stability and change in careers and work satisfaction. Recent research that strengthens the explanatory power of Holland's typology and links it to the Big Five personality factors is described. Speculations about using…

The Self-Directed Search for educational and Vocational Planning is a self-administered, self-scored, and self-interpreted vocational counseling tool. It is inexpensive, practical, and has a high degree of scientific validity and client effectiveness. The SDS is based on Holland's theory of personality types. (Author)

Comments on preceding articles include "Studies of the Hexagonal Model" (Holland, Gottfredson); "Structure of Occupations" (Dawis); "Is Holland's Theory Worthy of So Much Attention?" (Schwartz); "Does Enough Evidence Exist to Modify Holland's Theory?" (Hansen); "Research and Application Using Holland's…

Structural-interactive vocational theory shows that both aspirational and work histories have continuity over the life span and provide useful explanations of stability and change. This paper suggests some implications of structural-interactive theory for the study of adult development. Common principles of structural-interactive theories are…

The paper uses John L. Holland's theory of careers to explain certain common career phenomena and concepts. An understanding of careers requires useful answers for four fundamental questions relating to vocational choice, vocational stability and instability, and vocational congruence. The theory of careers attempts to answer these fundamental…