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. 2016 Nov 15;7:1722. doi: 10.3389/fpsyg.2016.01722

Table 1.

Analysis of task inhibition: Results of the 2 × 2 ANOVAs with within-subjects variable Task Sequence (ABA, CBA) and between-subjects variable Age Group (young adults, older adults).

(A) Analysis including all participants (24 young adults, 24 older adults).
Dependent measure Main effect Age Group Main effect Task Sequence Interaction Task Sequence × Age Group
F(1, 46) p ηp2 F(1, 46) p ηp2 F(1, 46) p ηp2
MEAN PERFORMANCE
RT 56.72 <0.05 0.55 22.22 <0.05 0.33 <1.0 n.s.
Log RT 94.75 <0.05 0.67 29.21 <0.05 0.39 <1.2 n.s.
Error Rates 4.14 <0.05 0.08 8.42 <0.05 0.16 <1.0 n.s.
DIFFUSION MODEL PARAMETERS
a 7.38 <0.05 0.14 6.05 <0.05 0.12 2.42 = 0.13 0.05
ν <1.0 n.s. 9.11 <0.05 0.17 2.68 = 0.11 0.06
t0 116.38 <0.05 0.72 4.61 <0.05 0.09 <1.0 n.s.
st0 25.15 <0.05 0.35 <1.0 n.s. <1.0 n.s.
(B) Analysis including only participants with non-outlying task inhibition effects in model parameters (22 young adults, 18 older adults).
Dependent measure Main effect Age Group Main effect Task Sequence Interaction Task Sequence × Age Group
F(1, 38) p ηp2 F(1, 38) p ηp2 F(1, 38) p ηp2
MEAN PERFORMANCE
RT 75.49 <0.05 0.67 18.10 <0.05 0.32 <1.0 n.s.
Log RT 102.33 <0.05 0.73 21.75 <0.05 0.36 <1.0 n.s.
Error Rates 4.59 <0.05 0.11 8.76 <0.05 0.19 <1.0 n.s.
DIFFUSION MODEL PARAMETERS
a 6.45 <0.05 0.15 8.87 <0.05 0.19 5.11 <0.05 0.12
ν <1.0 n.s. 16.21 <0.05 0.30 3.78 = 0.06 0.09
t0 92.48 <0.05 0.71 11.14 <0.05 0.23 5.93 <0.05 0.14
st0 23.46 <0.05 0.38 <1.0 n.s. <1.0 n.s.