Impact of Social Desirability and Common Method Variance on Two Measures of Entitlement

Entitlement is the predisposition toward expecting or demanding more rewards than someone else regardless of one's own contribution, effort, or performance. This study examines the impact of social desirability and common method variance on the discriminant validity of the two most popular measures of entitlement: The Psychological Entitlement Scale and the Entitlement subscale of the Narcissistic Personality Inventory. Data were gathered using three independent samples. In all three studies, forcing items to load on their intended and separate constructs measuring entitlement fit the data well thus providing some evidence of discriminant validity. The correlation between the two entitlement constructs was larger than in previous studies but short of that which is necessary for collinearity providing further evidence of discriminant validity in each study. In each study the amount of shared variance between the two latent entitlement constructs was more than the variance explained in either construct thus failing to provide evidence of discriminant validity. These two measures are similarly affected by socially desirable responding but not likely contaminated by common method variance. Because of their consistently and moderately strong correlation, the PES and the entitlement subscale of the NPI likely measure different but strongly related constructs.