Differences between volunteers and non-volunteers for psychological studies

Abstract

In two separate situations, volunteers were compared with non-volunteers on a number of psychometric and face-sheet variables. In terms of the specific instruments used, it was found that volunteers showed a greater tendency than non-volunteers to admission of discouragements, inadequacies, and anxieties, and, at the same time, some tendency toward defensiveness. Volunteers were less fascist-minded than non-volunteers, more intraceptive and psychological-minded, and less conventional. Male volunteers tended toward greater femininity of interests; female volunteers showed a higher degree of serious-mindedness than non-volunteers. (PsycInfo Database Record (c) 2025 APA, all rights reserved)