AIC = -368.43 Gradient: (1, 200) = 47.21, < 0.0001; same as above F p Relational disparity: (2, 200) = 18.43, < 0.0001; same as above F p Familiarity: (1, 200) = 48.35, < 0.0001; significantly improves explanatory power, F p but it is not yet clear whether its strength should vary across groups Model 4: Three predictors, and vary, is fixed r f g AIC = -372.66 Gradient: (1, 198) = 49.61, < 0.0001; same as above F p Relational disparity: (2, 198) = 17.17, < 0.0001; same as above F p Familiarity: (2, 198) = 4.27, = 0.015; significant difference in strength of across F p f groups All three predictors included, strength of is constant, strengths of and vary Final model: g r f across groups Model selection for Experiment 1: Large Circle condition Model 1: Two predictors (r and both vary g), AIC = 4.07 Gradient: (2, 199) = 1.52, = 0.22; no evidence that strength of varies across groups F p g Relational disparity: (2, 199) = 5.73, = 0.004; significant difference in strength of F p r across groups Model 2: Two predictors, varies, is fixed r g AIC = 3.71 Gradient: (1, 201) = 14.45, = 0.0002; significantly improves explanatory power and F p should be retained as a fixed factor
AIC = -368.43 Gradient: F (1, 200) = 47.21, p < 0.0001; same as above Relational disparity: F (2, 200) = 18.43, p < 0.0001; same as above Familiarity: F (1, 200) = 48.35, p < 0.0001; significantly improves explanatory power, but it is not yet clear whether its strength should vary across groups Model 4: Three predictors, r and f vary, g is fixed AIC = -372.66 Gradient: F (1, 198) = 49.61, p < 0.0001; same as above Relational disparity: F (2, 198) = 17.17, p < 0.0001; same as above Familiarity: F (2, 198) = 4.27, p = 0.015; significant difference in strength of f across groups Final model: All three predictors included, strength of g is constant, strengths of r and f vary across groups Model selection for Experiment 1: Large Circle condition Model 1: Two predictors (r and g), both vary AIC = 4.07 Gradient: F (2, 199) = 1.52, p = 0.22; no evidence that strength of g varies across groups Relational disparity: F (2, 199) = 5.73, p = 0.004; significant difference in strength of r across groups Model 2: Two predictors, r varies, g is fixed AIC = 3.71 Gradient: F (1, 201) = 14.45, p = 0.0002; significantly improves explanatory power and should be retained as a fixed factor