The Strong Interest Inventory® assessment is one of the world’s most widely respected and frequently used career planning tools. It has helped both academic and business organizations develop the talent and has guided thousands of people—from high school and college students to midcareer workers seeking a change—in their search for a rich and fulfilling career.
Dr. Edward K. Strong, Jr. (1884–1963) was the first author of the Strong Interest Inventory assessment and the first psychologist to devote a career to the measurement and study of vocational interests. The SuperStrong assessment carries on Dr. Strong's work through accessible self-interpretable access to career and educational exploration.
Take a look at one of our featured assessments, the SuperStrong.
Dr. John Holland’s theory of personality types and work environments was added to the Strong Assessment in its 1974 revision. The Strong is the only empirically derived RIASEC assessment. Holland’s theory is based on four main assumptions:
1. Most people can be categorized into one or some combination of the six RIASEC Themes.
2. Work environments can be divided into these six Themes and each is suited for a certain type of person.
3. People seek environments that complement their personality and avoid work that they do not like.
4. The match between a person's personality and their work environment influences their job performance, satisfaction, and stability.
Studies have found the GOTs to be predictive of work-related variables (Donnay &
Borgen, 1996; Rottinghaus, Lindley, Green & Borgen, 2002).
Research has shown the BISs can accurately distinguish occupations (Borgen & Lindley, 2003; Isaacs, Borgen, Donnay & Hansen, 1997; Larson & Borgen, 2002).
Validity of the PSSs has been supported through research showing their relationships with the Skills Confidence Inventory (Tuel & Betz, 1998) and MBTI instruments (Hammer & Kummerow, 1996).
Validity of the OSs has been demonstrated in research showing their ability to predict the occupations that people will eventually enter (Strong, 1935, 1955; Campbell, 1966; Harmon, 1969; Hansen & Swanson, 1983; Dirk & Hansen, 2004).