Table 1.

General and differential effects of choice systems and asymmetry on average percentage taken with random effects for person (N = 248).

	Fixed effects						Random effects
	B	95% CI	SE	df	t	p	SD
Intercept	13.89	13.57, 14.21	0.16	496	85.53	< 0.001	1.73
Asymmetry	1.04	0.40, 1.68	0.32	245	3.20	0.002
Advantaged	2.68	1.85, 3.51	0.42	245	6.38	< 0.001
Intercept	14.46	13.81, 15.11	0.33	494	43.78	< 0.001	5.20
Median	− 1.14	− 1.80, − 0.48	0.34	494	− 3.39	< 0.001	5.29
MVoting	− 0.85	− 1.38, − 0.32	0.27	494	− 3.14	0.002	4.25
Intercept	14.59	13.98, 15.20	0.31	490	47.19	< 0.001	4.80
Median	− 1.23	− 1.85, − 0.60	0.32	490	− 3.87	< 0.001	4.92
MVoting	− 0.87	− 1.40, − 0.34	0.27	490	− 3.21	0.001	4.19
Asymmetry	1.45	0.24, 2.67	0.62	245	2.36	0.019
Advantaged	5.06	3.49, 6.64	0.80	245	6.33	< 0.001
Median × Asym	− 1.03	− 2.27, 0.21	0.63	490	− 1.62	0.105
Median × Adv	− 5.06	− 6.67, − 3.45	0.82	490	− 6.18	< 0.001
MVoting × Asym	− 0.22	− 1.27, 0.84	0.54	490	− 0.40	0.688
MVoting × Adv	− 2.09	− 3.46, − 0.72	0.70	490	− 2.99	0.003

Median and MVoting are dummy coded with individual choice as reference; Asymmetry is contrast coded to compare symmetric versus asymmetric groups; Advantaged is contrast coded to compare advantaged versus disadvantaged group members; all tests are two-sided.

MVoting Majority voting, Asym Asymmetry, Adv Advantaged.