Table 2. Partial correlation coefficients between EF tasks (accuracy and RT measures from the sub-sessions) and acoustic sensitivity (VOT and f0 coefficients). ‘r’, ‘p’ and ‘N’ indicate partial correlation coefficients, p-values, and sample numbers, respectively

(a) Gyeongsang
Group	EF task	Measure	Cue	r	p-value	N
Lax-Aspirated
College	N-Back (3-Back-Target)	ACC	VOT	0.38	0.04	32
Tense-Lax
Highschool	N-Back (3-Back-NonTarget)	ACC	VOT	0.44	0.038	23
Highschool	N-Back (2-Back-NonTarget)	ACC	VOT	0.43	0.047	23
Tense-Aspirated
Highschool	DCCS	RT	VOT	–0.48	0.034	20

(b) Seoul
Group	EF task	Measure	Cue	r	p-value	N
Lax-Aspirated
Elementary	N-Back (1-Back-Target)	ACC	f0	0.56	0.01	21
Elementary	N-Back (1-Back-NonTarget)	ACC	f0	0.49	0.03	21
Highschool	Stroop (Incongruent-Congruent)	RT	VOT	–0.47	0.04	19
College	Stroop (Incongruent-Non color)	RT	VOT	–0.36	0.02	39
Tense-Aspirated
Highschool	Stroop (Incongruent-Congruent)	RT	f0	0.495	0.036	19
College	Stroop (Incongruent-Non color)	RT	f0	0.415	0.009	39
College	Stroop (Incongruent-Non color)	RT	VOT	–0.321	0.049	39