(a) Alternative social arena (50 x 70 cm) with a different locations and types of objects compared to arena shown in Fig. 1b. (b) IDs 1-4 show intermediate to strong correlations between the original and replication datasets (ρ denotes the Pearson correlation coefficient between the sets). Each point represents the score of a mouse tested in the original setup using either the original or alternative projection matrix. Alternative IDs were computed using a projection matrix estimated based on the behaviors of mice in the alternative setup (n = 208 individuals). In order to make use of the same projection matrix, the number of behaviors in the original groups were restricted to the same 37 that could be collected from the alternative setup.