Table 4.

Interrater (six raters) and intrarater (rater A) reliabilities of subtotal and total scores of the AIMS (Alberta Infant Motor Scale) using ICC and 95% CI.

	Interrater Reliability
	≤3 Months (n = 12)		4–7 Months (n = 36)		≥8 Months (n = 22)		Total (n = 70)
	ICC	95% CI	ICC	95% CI	ICC	95% CI	ICC	95% CI
Prone total	0.981	0.956–0.994	0.979	0.966–0.988	0.979	0.961–0.990	0.987	0.981–0.991
Supine total	0.963	0.917–0.988	0.981	0.969–0.989	0.977	0.959–0.989	0.985	0.979–0.990
Sitting total	0.962	0.916–0.988	0.993	0.989–0.996	0.992	0.985–0.996	0.996	0.994–0.997
Standing total	0.796	0.544–0.932	0.998	0.996–0.999	0.995	0.991–0.998	0.997	0.996–0.998
Total	0.940	0.849–0.984	0.998	0.996–0.999	0.995	0.991–0.998	0.998	0.997–0.999
	Intrarater Reliability
	≤3 months (n = 12)		4–7 months (n = 36)		≥8 months (n = 22)		Total (n = 70)
	ICC	95% CI	ICC	95% CI	ICC	95% CI	ICC	95% CI
Prone total	0.855	0.495–0.958	0.973	0.947–0.986	0.982	0.971–0.989	0.982	0.971–0.989
Supine total	0.749	0.129–0.928	0.885	0.775–0.942	0.940	0.904–0.963	0.940	0.904–0.963
Sitting total	0.776	0.187–0.933	0.971	0.944–0.985	0.987	0.979–0.992	0.987	0.979–0.992
Standing total	0.867	0.540–0.962	0.995	0.990–0.997	0.994	0.991–0.996	0.994	0.991–0.996
Total	0.940	0.792–0.983	0.988	0.976–0.994	0.994	0.991–0.996	0.994	0.991–0.996