Purpose
The Strong Interest Inventory (SII), initially introduced in 1927 by E. K. Strong Jr., has become a well established instrument for measuring a person’s career interests.
Link to Instrument
The Strong Interest Inventory (SII), initially introduced in 1927 by E. K. Strong Jr., has become a well established instrument for measuring a person’s career interests.
291
30-45 minutes
Adult
18 - 64
yearsInitially reviewed by Timothy P. Janikowski, PhD and his University at Buffalo Rehabilitation Counseling Master’s students, Allison Oste and Jessica West (4/11/2015).
From the research done on the Strong Interest Inventory, it is a widely accepted measure for predicting future career opportunities based on the interests of the test taker. While it is a valid and reliable test, there is always the chance that the test taker will have some bias based on their opinions of what they are interested in and what they will succeed at doing. While the data suggests that based upon test takers results and their actual occupation or occupation that they foresee having, the test has excellent reliability and validity, the data does not take into account a bias within the test-taker, due to the self-report aspect of the test.
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(Case & Blackwell, 2008)
SII utilizes the General Representative Sample (GRS) for normative information, using an equal number of men and women, approximately 30% of whom are non-white. The GRS also consists of adults in 370 separate occupations (Donnay, Thompson, Morris & Sohaubhut, 2004).
Population not established
(Kantamneni & Fouad, 2011)
(Case & Blackwell, 2008)
Population not established (Kantamneni & Fouad, 2011)
Ultraorthodox Jewish Men (Pirutinksy, 2012)
Concurrent Validity:
Women (Gasser, Larson, & Borgen, 2007)
Freshman Undergraduates (Female) (Hanson & Swanson, 1983)
Freshman Undergraduates (Male) (Hanson & Swanson, 1983)
Senior Undergraduates (Female) (Hanson & Swanson, 1983)
Senior Undergraduates (Male) (Hanson & Swanson, 1983)
Predictive Validity:
Female College Undergraduates (Hanson & Swanson, 1983)
Male College Undergraduates (Hanson & Swanson, 1983)
According to CPP.com, the SII has Excellent Face Validity (2009).
Gender Bias Responsiveness ( Einarsdottir & Rounds, 2009)
Case, J.C., & Blackwell, T.L. (2008). Review of Strong Interest Inventory?, Revised Edition. Rehabilitation Counseling Bulletin, 51(2), 122-126. .
CPP. (2009). Validity of the strong interest inventory instrument. Retrieved from:
Dik, B. J., & Hansen, J. C. (2004). Development and validation of discriminant functions for the strong interest inventory. Journal of Vocational Behavior, 64(1), 182-197. .
Donnay, D. A. C., Thompson, R. C., Morris, M. L., & Sohaubhut, N. A. (2004). Technical brief for the newly revised strong interest inventory assessment: Content, reliability, and validity. Retrieved from CPP website:
Einarsdóttir, S., & Rounds, J. (2009). Gender bias and construct validity in vocational interest measurement: Differential item functioning in the strong interest inventory. Journal of Vocational Behavior, 74(3), 295-307. .
Fouad, N. A., & Mohler, C. J. (2004). Cultural validity of holland's theory and the strong interest inventory for five Racial/Ethnic groups. Journal of Career Assessment, 12(4), 423-439. .
Gasser, C. E., Larson, L. M., & Borgen, F. H. (2007). Concurrent validity of the 2005 strong interest inventory: An examination of gender and major field of study. Journal of Career Assessment, 15(1), 23-43. .
Hansen, J. C., & Swanson, J. L. (1983). Stability of interests and the predictive and concurrent validity of the 1981 strong-campbell interest inventory for college majors. Journal of Counseling Psychology, 30(2), 194-201.
Kantamneni, N., & Fouad, N. (2011). Structure of vocational interests for diverse groups on the 2005 strong interest inventory. Journal of Vocational Behavior, 78(2), 193-201. .
Neukrug, E. S., & Fawcett, R. C. (2015). The essentials of testing and assessment: A practical guide to counselors, social workers, and psychologists. Stamford: Cengage Learning.
Pirutinsky, S. (2013). Career assessment of ultraorthodox jewish men: Reliability, validity, and results of the strong interest inventory. Journal of Career Assessment, 21(2), 326-336. .
Prince, Jeffrey P. (1998). Interpreting the Strong Interest Inventory: A case study. The Career Development Quarterly, 46(4) 339-346.
Watkins, J.,C.Edward, & Campbell, V. L. (2012). Interpretation of the Strong Interest Inventory Testing and assessment in counseling practice. (pp 204-234). Hoboken: Taylor and Francis.
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