Group Dynamics: Theory, Research, and Practice, Vol 29(3), Sep 2025, 149-190; doi:10.1037/gdn0000238
Objective: Group flow is a positive phenomenon of group action. As the previous questionnaires for measuring group flow had shortcomings (e.g., potential for more extensive consideration of theoretical elements, missing validation), the aim of the present work was to elaborate a new questionnaire. Method: Based on the integrative group flow theory and based on clear methodological considerations, the Group Flow Inventory (GFI) was therefore developed as a new questionnaire and evaluated two studies in the sport domain (Study 1: N = 152 German hockey players; Study 2: 486 German athletes of different team sports). Results: The GFI measures group flow from a self-oriented and a group-oriented perspective of the responding individual. Corresponding to the integrative group flow theory, factor analyses of the two studies have confirmed that the GFI consists of two factor levels: primary fit (i.e., the degree to which all group members within the group system fit together in the light of a group task) and secondary fit (i.e., the degree to which the group system as a whole fits the group task) at the higher level, which are each composed of behavior, state of mind, and skills at the lower level. Correlation analyses for validation have shown relationships between group flow on the one hand, and performance, motivational climate, intrateam communication and well-being on the other hand. Conclusions: The GFI offers various application possibilities. Its development and the results of the two studies not only stimulate group flow research but also offer new starting points for individual flow research. (PsycInfo Database Record (c) 2025 APA, all rights reserved)