failed to reach significancep = .06
Focus on Ecologically Valid Stimuli When the analysis with expertise and complexity as independent variables, and RTs and performance as dependent variables, was restricted to ecologically valid conditions (i.e., game positions), an opposite pattern was found: Expertise significantly affected performance, F (1,27) = 6.42, p <.05, MSE = 0.01, but complexity failed to reach significance, F (1,27) = 3.02, p = .06, MSE <0.01.