VOLUNTEER BIAS AND THE 5-FACTOR MODEL

We correlated consent granting for release of standardized test scores and willingness to be followed up in longitudinal research with measu res of the five-factor model of personality in introductory psychology students. As predicted, agreeableness and openness to experience pred icted volunteering in both situations. Extraversion also predicted wil lingness to be followed up in a longitudinal study. The results are co nsistent with the Rosenthal-Rosnow (1975) review of the literature on volunteer effects and extend that literature by relating it to the fiv e-factor model of personality.