The TIPI is the recommended 10-item version of the Big Five personality measure (a 5-item FIPI version also exists but has inferior psychometrics). Each of the five Big Five dimensions is measured with two items — one positively and one reverse-scored. Convergence with the 44-item BFI ranged from 0.65 (Openness) to 0.87 (Extraversion). Alpha is intentionally low given two items per dimension — test-retest reliability (0.62–0.77) is the more appropriate reliability indicator. Recommended when survey length prohibits use of the BFI or NEO-PI-R.
Gosling, S.D., Rentfrow, P.J., & Swann Jr., W.B. (2003). A very brief measure of the Big-Five personality domains. Journal of Research in Personality, 37(6), 504–528.
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