The purpose of the current study was to examine the concurrent validity of two personality assessments in a clinical population to aid in future test development of the newer measure. The scales of the Emotional Assessment System (EAS) were compared to similar scales of the Personality Assessment Inventory (PAI) with a psychiatric sample. It was hypothesized that 16 out of the 18 similar scales would be correlated. Correlation and regression analyses were conducted for the 51 participants. Findings revealed that 15 of the 16 hypothesized correlations were significant at the 0.01 level. The average correlation was .69 (SD = .17; n = 16), and the 16 correlations ranged from .12 to .83. However, contrary to predictions, both of the two hypothesized nonsignificant correlations between the PAI and EAS scales yielded a significant correlation. The non-significant correlation was between the PAI Positive Impression Management (PIM) scale and the EAS Positive Image (Ap) scale. The data suggests that the EAS and PAI have strong concurrent validity. Limitations of these findings and suggestions for future research are discussed.