This study data belongs to the project “voLeA TraIn: Transfer and individualisation of video-based assessment modules for conversation skills in medical studies - project: test development” (funded by the BMBF: grant number 16DHB2202). We conducted a randomized experiment to evaluate newly developed digital features that provide participants with different kinds of feedback on their performance in an online situational judgment test, the “Video-Based Assessment of Medical Communication Competence - VA-MeCo”. The data and a codebook are provided in German and English language.