A Longitudinal Analysis of the Relationship Between Self-Determined Motivation and Prosocial Orientation of Volunteer Tourists: The Mediating Role of Identity Processing Styles in Young Adults

The motivational dimensions of volunteer tourists have been a focal point of scholarly debate, closely aligning with their prosocial orientations. Limited attention has been given to examining these relationships through the lens of identity formation among young tourists. To address this gap, this study conducted a two-wave longitudinal investigation into the linkage between volunteer tourists' self-determined motivation and their prosocial orientation, with identity processing styles serving as a mediator. The sample (<i>n</i> = 291) consisted of freshmen and sophomores participating in a volunteer teaching program during the summer of 2024. We measured the variables of interest both before and after their attendance. In addition to direct effects, our findings observed two significant indirect pathways: (1) Wave 1 autonomous motivation was positively associated with an informational identity style at Wave 1, which predicted Wave 2 other-oriented helping tendency; and (2) Wave 1 controlled motivation was positively related to a normative identity style at Wave 1, which accounted for self-oriented helping propensity at Wave 2. Furthermore, the first relationship was uni-directional, as the coefficient for the reverse pathway (i.e., Wave 1 other-oriented helping → Wave 1 informational identity style → Wave 2 autonomous motivation) was not significant. In contrast, the second relationship was bi-directional, wherein Wave 1 self-oriented helping was positively associated with a normative identity style at Wave 1, which subsequently predicted Wave 2 controlled motivation. Taken together, our study contributes to the literature on altruistic motives, prosocial behavior, identity development, and volunteer tourism.