Appendix 3—table 1. Raw model selection results for Experiment 2.

The raw results of the model comparison analysis conducted depicted in Table 1 for Experiment 2. Roman numerals refer to a given model, as defined by the mapping between the ideal observer estimates and decision parameters in the first two columns. The column labeled DIC gives the raw DIC score, $\mathrm{\Delta }{\text{DIC}}_{null}$ lists the change in model fit from an intercept-only model (the null-adjusted fit), and $\mathrm{\Delta }{\text{DIC}}_{best}$ provides the change in null-adjusted model fit from the best-fitting model. The last row for each subject represents the null, intercept-only regression model. Equivocal winning models marked with an asterisk and a tilde.

Subject	$\mathrm{\Delta }B$	$\mathrm{\Omega }$	$DIC$	$\mathrm{\Delta }DI{C}_{null}$	$\mathrm{\Delta }DI{C}_{best}$
1	v	a	5286.0	–156.1	1.8 *$sim$
1	a	v	5430.2	–11.9	146.0
1	-	v	5431.3	–10.8	147.1
1	v	-	5284.1	–157.9	0.0 *$sim$
1	-	a	5444.0	2.0	159.9
1	a	-	5441.1	–0.9	157.0
1	-	-	5442.0	0.0	157.9
2	v	a	5162.9	–144.1	0.0 *$sim$
2	a	v	5283.0	–24.1	120.0
2	-	v	5281.0	–26.1	118.0
2	v	-	5165.1	–142.0	2.1 *$sim$
2	-	a	5303.7	–3.4	140.8
2	a	-	5309.2	2.1	146.2
2	-	-	5307.1	0.0	144.1
3	v	a	3034.8	–53.4	0.7 *$sim$
3	a	v	3090.1	1.9	56.0
3	-	v	3089.5	1.2	55.4
3	v	-	3034.1	–54.1	0.0 *$sim$
3	-	a	3089.2	0.9	55.1
3	a	-	3088.8	0.6	54.7
3	-	-	3088.2	0.0	54.1
4	v	a	5438.9	–7.7	1.4 *$sim$
4	a	v	5450.5	3.8	13.0
4	-	v	5448.5	1.8	11.0
4	v	-	5437.5	–9.1	0.0 *$sim$
4	-	a	5448.2	1.6	10.7
4	a	-	5448.7	2.0	11.2
4	-	-	5446.7	0.0	9.1