highly significantp = 0.014
Two 4-way ANOVA with repeated measures run on the SRT means and medians confirm what can be inferred from mere inspection (the two numbers given correspond to mean/median analyses; Geisser-Greenhouse correction for sphericity are signaled by an asterisk): with the exception of the D factor whose effect (13 ms) fringes significance (F(1,4) = 6.20/5.43, p = 0.067/0.080), the remaining three factors yield highly significant effects (TD: F(1,4) = 60.51/6.87, p = 0.0015/0.059; ISI: F(2,8) = 16.64/9.28, p = 0.014*/0.037*; ST: F(2,8) = 70.76/30.78, p = 0.000118*/0.0023).