표 2.|Table 2. 복제여부에 따른 각 변수의 기술통계 Descriptive statistics of each variable by cloning status

변수	복제 여부	Mean	SD	N
COG	natural	2,408.9316	979.56411	80
	cloned	2,720.5487	736.14298	80
SD	natural	1,872.4725	486.07016	80
	cloned	2,161.9090	338.56224	80
skewness	natural	1.01410	1.042523	80
	cloned	.60575	.633926	80
kurtosis	natural	1.30879	3.597587	80
	cloned	–.54638	1.168271	80
slope	natural	–33.4101	6.42324	80
	cloned	–35.5087	4.36284	80
tilt	natural	–5.2729	1.52290	80
	cloned	–6.2681	.99343	80
LH ratio	natural	233,060.4	608,095.2	80
	cloned	134,900.5	155,220.6	80
cepstral peak	natural	62.6990	2.31663	80
	cloned	61.8211	1.72592	80
quefrency	natural	.00425	.001488	80
	cloned	.00471	.001950	80
CPP	natural	9.2416	1.19023	80
	cloned	8.7314	1.43427	80
cepstral slope	natural	–5.9666	.82646	80
	cloned	–6.0684	.66165	80
cepstral intercept	natural	22.3360	3.95619	80
	cloned	21.8319	2.86375	80
RNR	natural	.2303	.17375	80
	cloned	.3011	.13209	80
mean F0	natural	173.0993	53.70867	80
	cloned	173.1891	53.62889	80
F0 SD	natural	37.5691	15.55155	80
	cloned	34.5901	13.92515	80
F0 range	natural	221.7015	125.08452	80
	cloned	213.1456	133.68622	80
mean intensity	natural	69.2457	3.78478	80
	cloned	75.2713	.90006	80
intensity SD	natural	19.8545	15.76732	80
	cloned	21.3686	1.84847	80
intensity range	natural	67.1966	55.40319	80
	cloned	63.3636	4.03835	80
speech rate	natural	3.638	.6439	80
	cloned	4.166	.4119	80

COG, center of gravity; CPP, Cepstral Peak Prominence; LH, low to high; RNR, Rhamonics to Noise Ratio.