Table 2.

Model selection.

Model	Parameters	DIC Difference from Top Model	n	%
Top model	21	0	56	37.3
Threshold fixed	20	179	46	30.7
Drift rate fixed	14	880	35	23.3
Non-decision time fixed	14	2720	13	8.7

The n and % columns denote the number and percentage of participants for whom each model was preferred (i.e., had the lowest DIC).