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뇌졸중 환자들을 위한 한국어판 Modified Rivermead Mobility Index의 측정자간 신뢰도와 동시 타당도
안승헌 ( An Seung-heon ),이규창 ( Lee Gyu-chang ),이경봉 ( Lee Kyeong-bong ),이동건 ( Lee Dong-geon ),송선해 ( Song Sun-hae ),표승현 ( Pyo Seung-hyeon ) 대구대학교 특수교육재활과학연구소 2016 특수교육재활과학연구 Vol.55 No.4
The purpose of this study was to investigate the inter-rater reliability and concurrent validity of the Modified Rivermead Mobility Index(MRMI) for stroke survivors. 42 stroke patients were participated in the study. The MRMI was administered in 2 testing sessions. Inter-rater reliability (Intraclass Correlation Coefficient; ICC), Internal consistency, and Weighted Kappa coefficient were used to examine the level of agreement between raters. For scale the item-total correlation and alpha if each item was deleted were calculated. Also we used to the Absolute reliability indices, including the Bland and Altman method, the standard error of measurement(SEM), and the Minimal Detectable Change(MDC). The concurrent validity was examined by correlating results to Modified Functional Ambulation Category(MFAC), 5m Walking Test(5mWT), Timed Up & Go test(TUG), Berg Balance Scale(BBS), Modified Barthel Index(MBI), Fugl Meyer Assessment(FMA). The mRMI meets the following requirements; 1) Inter-rater exact agreement for separate items was between Weighted Kappa=.64-.84. 2) The item-to-total correlations were all significant, ranging from r=.89∼.96(p < .01). MRMI showed good internal consistency(Cronbach`s α=.97). Individual items also possessed high internal consistency .96∼.97. Inter-rater reliability was excellent for ICC2,1=.97(.94~.98) for mRMI summary score and excellent SEM and MDC were 1.32, 3.66 respectively. 3) The mRMI were demonstrated high concurrent validity with the FAC(r = .84), the 5m WT(r = .73), TUG(r = -.76), BBS(r = .83), MBI(r = .83), and FMA(r = .56 ~ .59 p < .01). In addition, there needs to be a difference of more than 3.6 points(MDC score) in the overall score to detect true change in the subjects level of mobility. The MRMI makes it feasible to measure changes in mobility in routine clinical practice with high inter-rater reliability and concurrent validity.