Table 2.

Interrater reliability of the items of the AIMS (Alberta Infant Motor Scale) among six raters using Fleiss’ kappa.

	≤3 Months (n = 12)				4–7 Months (n = 36)				≥8 Months (n = 22)				Total (n = 70)
Items	Prone	Supine	Sitting	Standing	Prone	Supine	Sitting	Standing	Prone	Supine	Sitting	Standing	Prone	Supine	Sitting	Standing
1	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000	1.000
2	0.775	1.000	1.000	0.153	1.000	1.000	0.897	1.000	1.000	1.000	1.000	1.000	0.796	1.000	0.958	0.192
3	1.000	0.649	0.635	-	0.792	1.000	0.701	0.721	1.000	1.000	1.000	0.801	0.946	0.808	0.823	0.830
4	0.831	0.757	-	-	0.881	0.721	0.779	1.000	1.000	0.587	1.000	0.942	0.906	0.822	0.887	0.979
5	0.738	0.531	-	-	0.727	0.726	0.745	1.000	1.000	0.832	0.915	0.866	0.830	0.778	0.861	0.945
6	0.675	0.871	-	-	0.583	0.693	0.862	0.949	0.441	0.913	0.814	0.764	0.727	0.809	0.894	0.871
7	1.000	0.775	-	-	0.707	0.790	0.919	0.860	0.842	0.735	0.947	0.825	0.821	0.830	0.955	0.859
8	1.000	0.814	-	-	0.797	0.755	0.896	0.843	0.773	0.689	0.862	0.891	0.861	0.814	0.923	0.890
9	-	0.606	-	-	0.783	0.650	0.885	0.866	0.845	0.777	0.818	0.768	0.856	0.740	0.896	0.879
10	-		-	-	0.892		0.882	0.876	0.853		0.500	0.845	0.924		0.763	0.868
11	-		-	-	0.852		0.943	0.919	0.939		0.817	0.951	0.921		0.911	0.938
12	-		-	-	0.865		0.933	0.912	0.818		0.597	0.947	0.884		0.787	0.933
13	-			-	0.975			0.919	0.926			0.947	0.969			0.935
14	-			-	0.889			0.879	0.682			0.585	0.831			0.756
15	-			-	0.812			0.919	0.716			0.788	0.817			0.862
16	-			-	0.910			0.951	0.835			0.901	0.904			0.936
17	-				0.931				0.812				0.895
18	-				0.920				0.737				0.851
19	-				0.856				0.722				0.807
20	-				0.793				0.662				0.749
21	-				0.872				0.786				0.839