Self-Directed Search (SDS, Holland)
Psychology: Cognition & EducationReliability: alphas 0.85–0.933 sample items
About this scale
A self-administered measure of Holland's RIASEC vocational-interest model. The most cited operationalization of the RIASEC framework.
Sample item(s)
“Activities I would Like / Dislike: Repair electrical things (R)”
“Activities I would Like / Dislike: Read scientific books (I)”
“Activities I would Like / Dislike: Sketch, draw, or paint (A)”
Reliability
Reported internal consistency: alphas 0.85–0.93. As a rule of thumb, Cronbach’s α ≥ .70 is considered acceptable, ≥ .80 good, and ≥ .90 excellent for established measures.
Notes
Commercial license.
Source & citation
Holland, J. L. (1985): Making Vocational Choices: A Theory of Vocational Personalities and Work Environments (2nd ed.). Prentice-Hall.
Source. Scale details are summarised from the publication cited above. Always consult the original source for the full item set, scoring, and permission to use.
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