Table 2.

Means in Parameter Values for Subject Groups and Item and Associative Recognition

Task and parameter	Participants	a	z	Ter	η	sz	po	st	v1	v2	v3	v4	χ2
	college	0.083	0.047	0.476	0.136	0.039	0.004	0.176	0.119	0.249	-0.262	-0.314	78.3
item	60-74	0.116	0.061	0.575	0.180	0.041	0.001	0.187	0.108	0.217	-0.264	-0.325	65.9
mean	75-90	0.130	0.058	0.623	0.202	0.044	0.001	0.222	0.052	0.164	-0.242	-0.292	71.5
	college	0.093	0.043	0.461	0.150	0.029	0.000	0.231	0.087	0.156	-0.161	-0.124	45.5
assoc	60-74	0.130	0.049	0.569	0.134	0.019	0.000	0.292	0.035	0.107	-0.075	0.005	53.4
mean	75-90	0.138	0.051	0.600	0.116	0.023	0.000	0.310	0.014	0.080	-0.050	0.022	53.5
	college	0.014	0.011	0.048	0.092	0.023	0.009	0.062	0.093	0.117	0.132	0.163	25.8
item	60-74	0.028	0.019	0.067	0.101	0.032	0.005	0.065	0.137	0.142	0.155	0.179	19.9
SD	75-90	0.037	0.020	0.062	0.100	0.042	0.003	0.075	0.141	0.133	0.132	0.142	29.0
	college	0.017	0.010	0.069	0.141	0.029	0.001	0.069	0.125	0.133	0.137	0.153	12.7
assoc	60-74	0.036	0.013	0.089	0.108	0.023	0.001	0.066	0.097	0.108	0.093	0.098	20.7
SC	75-90	0.044	0.019	0.087	0.083	0.028	0.000	0.061	0.068	0.071	0.071	0.059	16.5

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), p_o = proportion of contaminants, s_t = range of the distribution of nondecision times, and χ² is the chi-square goodness of fit measure (with 33 degrees of freedom, the critical value is 50.7). For item recognition, v₁ is for old high frequency words, v₂ is for old low frequency words, v₃ is for new high frequency words, and v₄ is for new low frequency words. For associative recognition, v₁ is for intact high frequency pairs, v₂ is for intact low frequency pairs, v₃ is for rearranged high frequency pairs, and v₄ is for rearranged low frequency pairs.