Table 2. Results from regression analyses for African and Scottish observers' attractiveness judgements of African faces.

	β	F/t	P	Effect size	95% CI
					Lower	Upper
African ratings of African female faces
Model		1.642	0.131	0.389
Colour component	0.410	2.530	0.017	0.414	0.023	0.440
Shape component 9	−0.269	−1.812	0.080	−0.309	−0.036	0.008
Scottish ratings of African female faces
Model		2.921	0.008	0.531
Shape component 9	−0.472	−3.627	0.001	−0.546	−0.056	−0.012
Shape component 8	−0.324	−2.460	0.020	−0.404	−0.054	−0.003
Shape component 4	−0.259	−2.083	0.046	−0.350	−0.024	0.001
African ratings of African male faces
Model		2.374	0.031	0.474
Colour comp 1	0.472	2.854	0.008	0.473	0.037	0.512
Scottish ratings of African male faces
Model		0.792	0.647	0.231

Results obtained using simultaneous regression method. F statistics are indicated for the overall model and t statistics for individual coefficients. Effect size: R2 (model); Partial eta squared (variables). β indicates the standardized beta coefficient and CI the confidence interval based on 1000 bootstrap samples. Only significant and marginally significant (p≤0.08) coefficients are indicated. Higher values for the colour components indicate a lighter, yellower and redder complexion. High values for the shape components seem to indicate: higher facial adiposity and/or robustness (shape component 9); lower femininity and/or neoteny (shape component 8 and 4).