Abstract

This research tested a theoretical model drawing on components of social psychological (self-efficacy) and resource-mobilization (networks) theories to explain changes in social movement participation among Earthwatch expedition volunteers. It was hypothesized that involvement in an Earthwatch trip increases self-efficacy and facilitates the development of new networks, influencing volunteers' participation in social movement organizations. Results from pre- and post-trip survey suggest that as a consequence of the networks established during an expedition, participation in an expedition had a significantly positive effect on social movement activities. Changes in self-efficacy were not found to have any significant effect.

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