marginally significantp = .06
Regressing power, ad (dummy-coded), their interaction, and age and gender on purchase intention revealed a marginally significant effect of age ( β = − .01, t (187) = − 1.92, p = .06, semipartial correlation = − .14), and more importantly, a significant interaction of power × ad ( β = .39, t (187) = 2.10, p = .04, semipartial correlation = .143; see Fig. 1 ).