In the field of human resources management, self-esteem has been one of the most researched personality variables. Recently, the construct of organization-based self-esteem also has come under investigation. Organization-based self-esteem is defined as "the degree to which organizational members believe that they can satisfy their needs by participating in roles within the context of an organization." This study was conducted to further validate and explore the construct validity of a scale developed to measure organization-based self-esteem. Mental health workers (N=155) from the Department of Mental Health and Mental Retardation in the State of Tennessee completed the organization-based self-esteem scale and provided information on demographic, personality, and organizational variables. The results of a step-wise multiple regression analysis showed that organization-based self-esteem was related to subjects' global self-esteem, need for achievement, organizational citizenship, organizational commitment, motivating potential score, and education. Subject status in the organization (direct care employee, administrative staff, managerial personnel) was not related to organization-based self-esteem. The findings suggest that organization-based self-esteem is related to many variables that are intrinsic to the employees' subjective feelings in an organization. (Author/NB)