Reliability and Concurrent Validity of a Chinese Version of the Alberta Infant Motor Scale Administered to High-Risk Infants in China

Table 2

Interrater reliability of AIMS scores recorded independently by raters A, B, and C.

Group	Rater A		Rater B		Rater C		Inter-rater reliability
	Mean	SD	Mean	SD	Mean	SD	ICC	95%CI
0–3 months (n = 23)
Prone	2.52	1.12	2.52	1.12	2.48	1.28	0.981	0.962–0.991
Supine	2.43	1.08	2.43	1.04	2.35	1.19	0.975	0.949–0.988
Sitting	0.78	0.80	0.65	0.78	0.70	0.77	0.948	0.895–0.976
Standing	0.78	0.42	0.78	0.42	0.87	0.46	0.946	0.891–0.975
Total score	6.52	2.76	6.39	2.73	6.39	3.07	0.982	0.963–0.992
4–9 months (n = 27)
Prone	6.74	3.21	6.74	3.08	6.59	2.83	0.992	0.985–0.996
Supine	5.89	1.83	5.78	1.91	5.70	1.79	0.991	0.982–0.995
Sitting	4.22	3.18	4.22	3.20	4.00	3.08	0.991	0.982–0.995
Standing	1.93	1.14	1.93	1.14	1.81	1.11	0.920	0.848–0.961
Total score	18.78	8.63	18.67	8.65	18.11	7.83	0.996	0.992–0.998
0–9 months (n = 50)
Prone	4.70	3.32	4.72	3.25	4.62	3.10	0.995	0.992–0.997
Supine	4.34	2.24	4.28	2.23	4.20	2.21	0.994	0.990–0.996
Sitting	2.60	2.96	2.56	2.99	2.46	2.84	0.992	0.988–0.995
Standing	1.42	1.03	1.42	1.03	1.40	0.97	0.943	0.909–0.966
Total score	13.06	9.02	12.98	9.02	12.68	8.45	0.997	0.995–0.998

95%CI: 95% confidence interval; AIMS: Alberta Infant Motor Scale; ICC: intraclass correlation coefficient; SD: standard deviation.