Table 3.

Reliability analysis of the screening tool.

Factors	Cronbach’s alpha	ICC	95% CI	p
Language expression	0.87	0.81	0.66-0.92	<0.0001
Language reception	0.91	0.91	0.88-0.93	<0.0001
Total	0.87	0.83	0.68-0.93	<0.0001

ICC, intraclass correlation coefficient; CI, confidence interval.