| Recent research into the possibility of a nonlinear relationship between conscientiousness and job performance has been unable to show that a nonlinear model was more appropriate than a linear model. This finding may be due to a lack of psychometric information at the higher end of conscientiousness in current measures of the construct. The current study attempted to create a new measure with test information focused at the higher end of the scale by combining conscientiousness and obsessive-compulsive personality items, and then used this new measure to revisit the notion of a nonlinear relationship between conscientiousness and performance via hierarchical multiple linear regression. Results indicated that the addition of obsessive-compulsive personality items served primarily to increase test information at the low end of the scale. Results of regression analyses between the original conscientiousness scale, obsessive-compulsive personality scale, the new conscientiousness scale, and leadership performance ratings suggest that the new scale may lack construct validity, and the original scales may be more appropriately applied separately. |
