From: The effect of speaker gender and talker proficiency on the realization of Taiwan Min /dz/ among young speakers
Coefficient
Std. error
z value
p
Intercept
3.24
2.27
1.43
.15
Vowel (unrounded)
− 4.41
1.40
− 3.16
.0016
Proficiency (mid)
− 0.84
3.68
− 0.23
.82
Vowel: proficiency
4.36
2.42
1.80
.07