Group Laziness: The Effect of Social Loafing on Group Performance

Social loafing has been defined as a phenomenon in which people exhibit a sizable decrease in individual effort when performing in groups as compared to when they perform alone, and has been regarded as a state variable. In this study, we instead conceptualized social loafing as a habitual response, given that many people have been found to be susceptible to social loafing in group tasks. We developed the self-reported Social Loafing Tendency Questionnaire (SLTQ) to measure individual variations in social loafing. In Study 1, the reliability and validity of the SLTQ were established in a sample of college students. In Study 2, SLTQ scores significantly negatively predicted individual performance in the group task condition, but not in the individual task condition. Social loafing can also be considered a trait variable, as it was found to modulate group dynamics when it was activated in a typical situation (i.e., being in a group).