中風病人姿勢控制評估量表之心理計量特性

The Psychometric Characteristics of the Postural Assessment Scale for Stroke Patients

10.6320/FJM.2002.6(4).02

王淳厚(Chun-Hou Wang)；毛慧芬(Hui-Fen Mao)；薛漪平(I-Ping Hsueh)；謝清麟(Ching-Lin Hsieh)

平衡 ； 中風 ； 信度 ； 效度 ； 反應性 ； balance ； stroke ； reliability ； validity ； responsiveness

台灣醫學

6卷4期（2002 / 07 / 01）

474 - 482

繁體中文

The Postural Assessment Scale for Stroke Patients (PASS) was developed in 1999 to measure balance function in stroke patients. However, the psychometric characteristics of the PASS have rarely been examined. The purpose of this study was to examine the reliability (inter-rater reliability and internal consistency), validity (concurrent validity, convergent validity, and discriminant validity) and responsiveness of the PASS in the acute stage of stroke patients. Eighty-two patients (with a mean age of 71) on the 7th and 14th days after stroke onset participated in this study. The internal consistency and inter-rater reliability of the PASS were good (Cronbach’s alpha = 0.96, intraclass correlation coefficient = 0.93, respectively). The PASS scores closely correlated with scores of the Berg balance scale, Barthel index (measuring self-care) and Fugl-Meyer motor test (Spearman’s rho=0.93, 0.84 and 0.75, respectively, p＜0.0001), indicating a high level of validity for the PASS. The results of effect size (0.78) and Wilcoxon’s matched-pairs signed-rank tests (Z=6.32, p＜0.001) demonstrated that this measure also had good responsiveness. These results showed very acceptable levels of reliability, validity, and responsiveness of the PASS for both clinicians and researchers.

The Postural Assessment Scale for Stroke Patients (PASS) was developed in 1999 to measure balance function in stroke patients. However, the psychometric characteristics of the PASS have rarely been examined. The purpose of this study was to examine the reliability (inter-rater reliability and internal consistency), validity (concurrent validity, convergent validity, and discriminant validity) and responsiveness of the PASS in the acute stage of stroke patients. Eighty-two patients (with a mean age of 71) on the 7th and 14th days after stroke onset participated in this study. The internal consistency and inter-rater reliability of the PASS were good (Cronbach’s alpha = 0.96, intraclass correlation coefficient = 0.93, respectively). The PASS scores closely correlated with scores of the Berg balance scale, Barthel index (measuring self-care) and Fugl-Meyer motor test (Spearman’s rho=0.93, 0.84 and 0.75, respectively, p＜0.0001), indicating a high level of validity for the PASS. The results of effect size (0.78) and Wilcoxon’s matched-pairs signed-rank tests (Z=6.32, p＜0.001) demonstrated that this measure also had good responsiveness. These results showed very acceptable levels of reliability, validity, and responsiveness of the PASS for both clinicians and researchers.