This study examined the relation of the Big Five factors of normal per
sonality to individual performance in total quality manufacturing. One
hundred thirty-six automobile plastic-part injection molding machine
operators completed the Hogan Personality Inventory (HPI). Criteria in
cluded behaviorally-based performance ratings. Successful employees ha
d significantly lower scores on Openness (HPI: Intellectance) and Extr
aversion (HPI: Sociability) than less successful employees, but higher
Conscientiousness scores (HPI: Prudence). A new HPI scale was develop
ed to predict performance in this environment.