. Author manuscript; available in PMC: 2021 Sep 1.

Published in final edited form as: Psychol Aging. 2020 Jul 27;35(6):850–865. doi: 10.1037/pag0000562

Table A2.

Means and standard deviations in nondecision time components across participant groups for fits of the diffusion model to the task-switch paradigm (for the model in the main text).

Group	Task	T_er1	T_er2	T_er3	T_er4	T_er5	T_er6
		Mean
college students	Brightness	0.396	0.412	0.537	0.397	0.425	0.562
college students	Letter	0.393	0.430	0.488	0.400	0.443	0.499
61–74 year olds	Brightness	0.525	0.628	0.919	0.514	0.605	0.923
61–74 year olds	Letter	0.487	0.577	0.705	0.475	0.558	0.701
75–89 year olds	Brightness	0.615	0.702	0.946	0.593	0.657	0.920
75–89 year olds	Letter	0.487	0.606	0.803	0.474	0.576	0.756
		Standard deviation
college students	Brightness	0.072	0.058	0.108	0.064	0.061	0.119
college students	Letter	0.031	0.040	0.054	0.027	0.040	0.055
61–74 year olds	Brightness	0.143	0.129	0.239	0.112	0.111	0.185
61–74 year olds	Letter	0.083	0.106	0.116	0.068	0.074	0.112
75–89 year olds	Brightness	0.237	0.208	0.297	0.167	0.184	0.183
75–89 year olds	Letter	0.052	0.090	0.175	0.064	0.058	0.135

Note. Model with one boundary separation for pure and mixed blocks. T_er1 = nondecision time component of response time for pure trials with short RSI; T_er2 = nondecision time component of response time for no-switch trials with short RSI; T_er3 = nondecision time component of response time for switch trials with short RSI; T_er4 = nondecision time component of response time for pure trials with long RSI; T_er5 = nondecision time component of response time for no-switch trials with long RSI; T_er6 = nondecision time component of response time for switch trials with long RSI.