**Code:** Code of the data analysis, reported in the manuscript (Helping_07-04-2023.html and HelpingEffort_07-04-2023.html). Please use your browser to view the file. ---------- **Data:** anonymized participant`s data ---------- **Prereg:** The present study is part of a larger project carried out within the context of the COVID-19 pandemic. Anonymized preregistration for the blinded peer-review can be found here.
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