Considers the mutual relevance of four themes: cultural diversity, construct validity, population generalizability, and professional ethics. Addresses the expanding need for sustained efforts to articulate the complex issues and emerging implications of the new realities of human diversity. Includes a review of previous literature, an assessment…

The 75-year history of marginality theory is reviewed and evaluated, leading to the recommendation that the use of the marginality idea be discarded by social scientists because it lacks construct validity. A review of the literature reveals that, at present, the concept of marginality is employed in five different social science lines of…

This paper reviews a number of studies that have tested Fiedler's (1964) Contingency Model and Least Preferred Co-Worker Scale of leadership style and effectiveness, focusing on studies that have examined the characteristics and stability of this scale across age, ethnicity, and gender. The Contingency Model is based on three determinants of…