Data sharing - impact on participation and data quality

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Description: Sharing (raw, anonymous) participant data without restrictions is the new gold-standard of psychological research. However, it is possible that the data quality obtained in psychological studies is affected by this choice. Potential participants might be unwilling to contribute to the research, which can in turn create a biased sample in terms of the type of person who is still willing to participate. Subjects might participate, but behave in a way more in line with the public image they like to display, leading to less accurate self report data. Overall, their care in reading and complying with instructions might be lower than if data is not shared. We conduct two studies, one pen & paper, one online, to investigate the impact of data sharing on participant behaviour. For ethical reasons, we will not share the data of the participants who were in the "no open access" condition, but will make data available upon request. PLEASE NOTE: this project was supposed to contains two pre-registrations, one (the older) for the offline-version of the study, one (the more recent) for the online version. Unfortunately they are registered under the same title instead of two components of this project. Please read the Wiki for more details and information on R script versions and metadata.


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  • Data collected online

    here, we provide the data from the "sharing" condition of the data collected online. In addition, we created 3 metadata files: one for the entire data...

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  • Impact of Data sharing: Data collected offline

    here, we provide the data from the "sharing" condition of the data collected offline, on the Solbosch campus of the Université Libre de Bruxelles. In ...

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