Table 2.

Means of accent range and duration in monosyllabic tones by child and session (group totals reflect all sessions combined).

			Means
Child/ Group	Session	Age (months)	Duration (msec)	Pitch Range (cents)	N
M-10	1	9	458	479	10
	2	13	653	672	9
	3	15	369	967	5
	4	17	327	1089	15
	all	--	441	820	39
F-18	1	17	446	626	20
	2	21	518	773	10
	3	23	500	622	26
	4	25	314	395	20
	all	--	439	583	76
F-20	1	19	475	329	7
	2	23	484	316	8
	3	25	362	284	8
	4	27	285	333	19
	All	--	369	320	42
< 24 months	All	--	421	572	157
F-28	1	27	356	939	5
	2	31	407	779	9
	3	33	1065	1237	11
	4	35	391	685	14
	all	--	580	895	39
F-30	1	29	270	1060	15
	2	33	300	789	16
	3	35	374	640	16
	4	37	273	420	15
	all	--	305	727	62
M-36	1	35	254	744	8
	2	39	529	514	21
	3	41	397	412	8
	4	43	359	1060	3
	All	--	435	580	40
> 24 months	All	--	418	732	141
All	All	--	420	647	298