marginally non-significantP = 0.062
Of the environments in which it was rewarded, the performance of OR was higher when EQU was punished than when it was not (mean = 146.07 in +OR/-EQU environment versus mean = 117.90 in +OR environment), although this difference was marginally non-significant (Mann–Whitney U = 5763, n = 200, P = 0.062).