Raw data underlying the analyses.

The data set contains the following: basic demographic data of the participants (age, sex)study group assignment of the participants (1 = standard instructor feedback, 2 = peer video feedback)raw data for time points t0 and t1:Confidence ratings (2 items: 1. feeling safe to do chest compression and 2. feeling safe in an emergency situation with a non-responding person)average compression depth (2 variables: 1. subject-wise average values and 2. categorial coding if the guidelines were met or not)average compression rate (2 variables: 1. subject-wise average rate (compressions per minute) and 2. categorial coding if the guidelines were met or not)performance on the BLS algorithm ((2 variables: 1. subject-wise points and 2. categorial coding if 60% of attainable points were achieved or not). basic demographic data of the participants (age, sex) study group assignment of the participants (1 = standard instructor feedback, 2 = peer video feedback) raw data for time points t0 and t1: Confidence ratings (2 items: 1. feeling safe to do chest compression and 2. feeling safe in an emergency situation with a non-responding person) average compression depth (2 variables: 1. subject-wise average values and 2. categorial coding if the guidelines were met or not) average compression rate (2 variables: 1. subject-wise average rate (compressions per minute) and 2. categorial coding if the guidelines were met or not) performance on the BLS algorithm ((2 variables: 1. subject-wise points and 2. categorial coding if 60% of attainable points were achieved or not). (XLSX)