marginally significantP = 0.052
However, marginally significant interactions among sociality, valence and SAS/SDS were also found (sociality × valence × SAS, F (1,43) = 3.998, P = 0.052, η p 2 = 0.085; sociality × valence × SDS, F (1,43) = 3.821, P = 0.057, η p 2 = 0.082), which violated the assumption of ANCOVA that covariates should not influence the effect of interest ( Miller and Chapman, 2001 ).