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

Table 4

Intrarater reliability of AIMS scores for rater B.

Group	First scoring		Second scoring		Intra-rater reliability
	Mean	SD	Mean	SD	ICC	95%CI
0–3 months (n = 23)
Prone	2.52	1.12	2.39	1.27	0.869	0.692–0.945
Supine	2.43	1.04	2.52	0.90	0.726	0.453–0.883
Sitting	0.65	0.78	0.65	0.83	0.673	0.430–0.861
Standing	0.78	0.42	1.04	0.56	0.580	0.319–0.822
Total score	6.39	2.73	6.61	2.79	0.872	0.699–0.946
4–9 months (n = 27)
Prone	6.74	3.08	6.56	3.00	0.985	0.967–0.993
Supine	5.78	1.91	5.74	1.89	0.976	0.946–0.989
Sitting	4.22	3.20	4.33	2.87	0.982	0.961–0.992
Standing	1.93	1.14	2.22	0.85	0.922	0.828–0.964
Total score	18.67	8.65	18.85	8.01	0.991	0.980–0.996
0–9 months (n = 50)
Prone	4.72	3.25	4.64	3.15	0.989	0.981–0.994
Supine	4.30	2.22	4.26	2.21	0.985	0.974–0.992
Sitting	2.92	3.93	2.64	2.85	0.988	0.979–0.993
Standing	1.42	1.03	1.68	0.94	0.923	0.864–0.956
Total score	12.98	9.02	13.22	8.69	0.995	0.991–0.990

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