Journal of Personnel Psychology
In the present study, relationships among group composition of trait optimism (the mean, standard deviation, and minimum and maximum scores of optimism), group cohesion, and three group performance variables (task performance, contextual performance, and creative performance) were examined. Multi-source data were collected from 56 workgroups including 202 group members and 56 group leaders. We found that the mean, maximum, and minimum operationalizations of group optimism composition were positively related to the three group performance variables and that group cohesion mediated the optimism–performance relationships for the mean and minimum operationalizations of group optimism. We recommend that practitioners generally consider selecting optimistic individuals and consider that the trait optimism level of a group’s least and most optimistic members may impact group outcomes.
Original Publication Citation
Jimenez, W. P., Hu, X., Kenneally, C., & Wei, F. (2021). Do they see a half-full water cooler? Relationships among group optimism composition, group performance, and cohesion. Journal of Personnel Psychology, 20(2), 75–83. https://doi.org/10.1027/1866-5888/a000271
Jimenez, William P.; Hu, Xiaoxiao; Kenneally, Chad; and Wei, Feng, "Do They See a Half-Full Water Cooler? Relationships Among Group Optimism Composition, Group Performance, and Cohesion" (2021). Psychology Faculty Publications. 115.