This dataset contains valuable information that allows for the recreation of the paper "Triadic influence as a proxy for compatibility in social relationships" which was published in PNAS. The dataset comprises 13 high school networks that represent the diverse social relationships that exist between students within each school. To construct each of these networks, you can utilize the "Edges_i.csv" and "Nodes_i.csv" files, which are available for download in the files section. The edges files provide data on weighted edges, where the weight varies between -2, -1, +1, and +2. The sign indicates the nature of the friendship, while the number corresponds to its intensity. On the other hand, the node files contain information about the age level, group, sex, and psychological attributes such as CRT and prosociality.

This work has been partly supported by grant PGC2018-098186-B-I00 (BASIC), funded by MCIN/AEI/10.13039/501100011033 and by ``ERDF A way of making Europe''. M.R.-G. acknowledges support from the CONEX-Plus program funded by Universidad Carlos III de Madrid and the European Union's Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No.~801538. P.B.-G.~acknowledges support from Junta de Andalucía (PY18-FR-007) and Agencia Andaluza de Cooperaci\'on Internacional para el Desarrollo (AACID-0I008/2020) and MCIN (PID2021-126892NB-I00).