Table 1. Mediation of SR, SCR to GS, and go success (GS) rate.

	Path a (X → M)	Path b (m → Y)	Path c (X → Y)	Path c’ (X → Y)	Mediation path (c—c’)
A. All subjects
Model 1: X (SCR) → Y (GS rate) mediated by M (SR)
β	8.44	1.01	30.08	21.55	8.53
p-values	0.006	0.033	0.000	0.010	0.123
Model 2: X (SR) → Y (GS rate) mediated by M (SCR)
β	0.02	21.55	1.43	1.01	0.42
p-values	0.000	0.01	0.002	0.033	0.012
Model 3: X (GS rate) → Y (SR) mediated by M (SCR)
β	1.43	0.003	0.02	0.02	0.005
p-values	0.002	0.036	0.000	0.008	0.084
B. Female subjects
Model 1: X (SCR) → Y (GS rate) mediated by M (SR)
β	4.34	1.19	30.17	25.00	5.166
p-values	0.39	0.111	0.094	0.162	0.501
Model 2: X (SR) → Y (GS rate) mediated by M (SCR)
β	0.01	25.00	1.37	1.19	0.177
p-values	0.274	0.162	0.063	0.111	0.465
Model 3: X (GS rate) → Y (SR) mediated by M (SCR)
β	1.37	0.00	0.01	0.01	0.002
p-values	0.063	0.187	0.274	0.535	0.364
C. Male subjects
Model 1: X (SCR) → Y (GS rate) mediated by M (SR)
β	10.31	0.78	33.44	25.42	8.018
p-values	0.022	0.165	0.010	0.009	0.270
Model 2: X (SR) → Y (GS rate) mediated by M (SCR)
β	0.022	25.42	1.34	0.78	0.561
p-values	0.000	0.009	0.042	0.165	0.014
Model 3: X (GS rate) → Y (SR) mediated by M (SCR)
β	1.34	0.01	0.02	0.01	0.008
p-values	0.042	0.112	0.000	0.051	0.110

Mediation analyses showed a significant Model 2 (SR → SCR → GS rate) in all subjects (A) and male (C) but not female (B) subjects.