표 6. | Table 6. 합창 참여 유형에 따른 그룹 별 청지각적 음성평가 점수 | Perceptual-auditory vocal quality evaluation according to the type of choir participation

Category	Total(N=77)	Regular choir(n=29)	Church choir(n=48)	t-value
	M (SD)	M (SD)	M (SD)
Grade	0.26(0.38)	0.28(0.36)	0.25(0.39)	0.394
Rough	0.09(0.24)	0.10(0.25)	0.08(0.24)	0.352
Breathy	0.13(0.26)	0.18(0.29)	0.09(0.25)	1.411
Asthenic	0.02(0.10)	0(0)	0.03(0.12)	–1.770
Strained	0.01(0.07)	0.02(0.06)	0.01(0.07)	0.418