The need for an evolving concept of validity in industrial and personnel psychology: Psychometric, legal, and emerging issues

The Trinitarian view of validity (namely content, criterion-related, and construct) has dominated psychology for almost a half century. In industrial and personnel psychology especially, content and criterion-related (in particular) forms of validity have served as workhorses. Such a limited focus has lead to a stagnation of the area and the inability to incorporate more theory into the research and practice of personnel psychology. Therefore, we review the evolution of the concept of validity in the psychology discipline, with a particular emphasis on industrial and personnel psychology. We then review the legal and statutory history within industrial and personnel psychology that has helped to shape the concept of validity over the years. Finally, we examine some emerging trends in industrial and personnel psychology, including the issue of graduate training, which may have important consequences on how we conceptualize validity in the future in both our research and practice of personnel psychology.