. Author manuscript; available in PMC: 2019 Nov 18.

Published in final edited form as: J Mem Lang. 2018 Jun 7;102:115–129. doi: 10.1016/j.jml.2018.05.005

Table 2:

Means and Standard Deviation in Model Parameters

Participant group		a	T_er	η	s_z	p_o	s_t	z	χ²
ABLE		0.263	1.260	0.088	0.060	0.003	0.788	0.150	135.8
College students	Mean	0.213	0.905	0.091	0.039	0.004	0.575	0.124	107.0
Older adults		0.242	1.200	0.097	0.033	0.004	0.670	0.143	106.0
ABLE		0.036	0.291	0.021	0.052	0.003	0.131	0.024
College students	SD	0.030	0.131	0.016	0.033	0.003	0.169	0.018
Older adults		0.042	0.169	0.028	0.027	0.013	0.175	0.029

Note. a=boundary separation, z=starting point, T_er=nondecision component of response time, η=standard deviation in drift across trials, s_z=range of the distribution of starting point (z), s_t = range of the distribution of nondecision times, p_o = the proportion of contaminants.