Table 2. The summary of correlation tests between Variable 1 (individual’ acoustic coefficients) and Variable 2 (L2 proficiency)
Variable 1
Variable 2
Estimate
p
-value
English
VOT coef.
L2 test scores
−0.37
.094
(/d/−/t/)
f0
coef.
L2 test scores
0.25
.27
Korean
VOT coef.
L2 test scores
−0.58
<.01
(/t/−/t
^{h}
/)
f0
coef.
L2 test scores
0.44
<.05