NEO Personality Inventory-Revised (NEO-PI-R)
Psychology: PersonalityReliability: alphas 0.86–0.95 at domain level3 sample items
About this scale
A 240-item measure of the Five-Factor Model with 6 facets per domain. The gold-standard comprehensive personality assessment in clinical and research settings.
Sample item(s)
“I really enjoy talking to people (extraversion)”
“I am not a worrier (neuroticism, reverse)”
“I have a lot of intellectual curiosity (openness)”
Reliability
Reported internal consistency: alphas 0.86–0.95 at domain level. As a rule of thumb, Cronbach’s α ≥ .70 is considered acceptable, ≥ .80 good, and ≥ .90 excellent for established measures.
Notes
Commercial license. NEO-FFI is the 60-item short form.
Source & citation
Costa, P. T., & McCrae, R. R. (1992): Revised NEO Personality Inventory (NEO-PI-R) and NEO Five-Factor Inventory (NEO-FFI) Professional Manual. Psychological Assessment Resources.
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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