Bachelorarbeit, Otto-Friedrich-Universität Bamberg, 2022

The present study investigates the effects of a lottery incentive and trust on the willingness of local public transport users (N =169) to disclose their personal data for the improvement of the local public infrastructure. A positive effect for the lottery incentive was expected, as well as differences between the three trust conditions, with trust positively affecting personal data disclosure. In the quasi-experimental field study conducted, posters were put up in 63 buses driving in Bamberg, whose originator was varied between Stadtwerke Bamberg, University of Bamberg, and BeeInnovation, which were assumed to elicit different levels of trust. Each poster was designed in two versions, with and without notice of the possibility of winning vouchers in a lottery when completing the survey. By scanning the QR code of the posters, participants were directed to a website where they were asked to submit demographic and location data and to allow linking their survey responses with possible future responses. The hypothesis tests with a chi-square test of independence showed no significant effects of the poster conditions on personal data disclosure. The varying number of QR code scans between the quasi-experimental conditions indicated that there might have been an effect on willingness to scan the QR-codes instead. Implications of these results were discussed, and recommendations for further research were given to clarify the role of lottery incentives and trust in personal data disclosure.