Self-Concept Clarity Scale (SCCS, Campbell)
Psychology: PersonalityReliability: alpha 0.863 sample items
About this scale
A 12-item measure of self-concept clarity — the extent to which self-beliefs are clearly and confidently defined, internally consistent, and stable.
Sample item(s)
“My beliefs about myself often conflict with one another (reverse)”
“On one day I might have one opinion of myself and on another day I might have a different opinion (reverse)”
“I spend a lot of time wondering about what kind of person I really am (reverse)”
Reliability
Reported internal consistency: alpha 0.86. As a rule of thumb, Cronbach’s α ≥ .70 is considered acceptable, ≥ .80 good, and ≥ .90 excellent for established measures.
Notes
Free for academic use.
Source & citation
Campbell, J. D., Trapnell, P. D., Heine, S. J., Katz, I. M., Lavallee, L. F., & Lehman, D. R. (1996): Self-concept clarity: Measurement, personality correlates, and cultural boundaries. Journal of Personality and Social Psychology, Vol. 70, No. 1, pp. 141–156.
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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