Decades of research show that (i) social value orientation (SVO)is related to important behavioral outcomes such as cooperation and charitablegiving, and (ii) individuals differ in terms of SVO. Aprominent scale to measure SVO is the social value orientation slider measure(SVOSM). The central premise is that SVOSM captures a stable trait. But it isunknown how reliable the SVOSM is over repeated measurements more than one weekapart. To fill this knowledge gap, we followed a sample of N =495 over 6 months with monthly SVO measurements. We find that continuous SVOscores are similarly distributed (Anderson-Darling k-sample p =0.57) and highly correlated (r ≥ 0.66) across waves. Theintra-class correlation coefficient of 0.78 attests to a high test-retestreliability. Using multilevel modeling and multiple visualizations, wefurthermore find that one’s prior SVO score is highly indicative of SVOin future waves, suggesting that the slider measure consistently capturesone’s SVO. Our analyses validate the slider measure as a reliable SVOscale.
