Abstract: Objective To verify the inter-rater reliability,intra-rater reliability and internal reliability of the action research arm test(ARAT)in patients with chronic stroke.Methods 30 people with chronic stroke were tested with the ARAT by two experienced raters.The inter-rater reliability,intra-rater reliability and internal reliability were examined.Results The ARAT showed high inter-rater reliability and intra-rater reliability(ICC=0.992 and 0.987,respectively)and internal consistency(Cronbach's alpha coefficient=0.936).Conclusion The ARAT shows good inter-rater reliability,intra-rater reliability and internal reliability in assessing patients after stroke.

Key words: action research arm test(ARAT), stroke, reliability