Dataset contains four files. File 1. Harda_et_al._2022_all_data.xlsx All data used in the publication. Results of the social conditioned place preference test perofmed on adult female laboratory mice (strain: C57BL/6). File 2. Harda_et_al._2022_initial_pref_30_70%.xls All data contained in File 1, except for animals that showed initial preference for any of the contexts exceeding 70%. File 3. Harda_et_al._2022_initial_pref_30_70%_trimmed.xlsx Data contained in File 2, randomly trimmed to the same number of animals for each social context. Trimming was performed separately for each experimental group. Data were trimmed by custom R script (File 4). File 4. trimmer.R R script used to randomly trimm data to the same number of animals for each social context.

This work was supported by the grant OPUS UMO-2016/21/B/NZ4/00198 from the National Science Centre Poland and the statutory funds of the Maj Institute of Pharmacology of the Polish Academy of Sciences.