Table 5.

Summary of Hierarchical Regression Analyses for Flanker and Switch diffusion.

	Congruent		Incongruent		Non-switch		Switch
Model and variable	ΔR2	β	ΔR2	β	ΔR2	β	ΔR2	β
DRIFT
Step 1	0.89**		0.093**		0.049**		0.093**
Age		0.299**		0.304**		0.239**		0.304**
Sex		−0.017		−0.077		−0.005		0.014
Pubertal timing						−0.032
Step 2	0.015**		0.015**		0.029**		0.036**
Fitness		0.139**		0.139**		0.193**		0.215**
BOUNDARY SEPARATION
Step 1	0.004		0.024**		0.008		0.011
Age		0.066		−0.106*		0.062		0.058
Sex		−0.009		−0.015		−0.070		−0.092*
Pubertal Timing				−0.068
Step 2	0.000		0.003		0.026**		0.013**
Fitness		−0.005		−0.067		0.184**		0.129**
NONDECISION TIME
Step 1	0.029**		0.004		0.019*		0.012
Age		0.020		0.058		−0.062		0.060
Sex		−0.032		0.013		0.101*		0.007
Pubertal timing		−0.175**				−0.084		−0.131*
Step 2	0.000		0.000		0.000		0.014**
Fitness		−0.013		−0.012		−0.023		0.136**

Only significant predictors.

^*p < 0.05,

^**p < 0.01.