R. Holden, J. Reddon
Jun 1, 1987
This study examined personality differences in participants from a university subject pool as a function of the time of participation during the academic term and year. For 150 introductory psychology students with required participation in a subject pool, significant associations were found between time of participation and specific personality variables as measured by Jackson's Personality Research Form. Significant temporal associations with more general personality modal profiles were also obtained. Investigators using university subject pools are warned that these temporal variations in personality may represent possible confounds in research.