GMFM-88과 GMFM-66의 신뢰도와 타당도 비교

Comparison of Reliability and Validity Between GMFM-88 and GMFM-66 in Children With Cerebral Palsy

The purposes of this study were to compare the reliabiliη and validiη of an 88-item version of the Gross Motor Function Measure (GMFM-88) and a 66-item version of GMFM (GMFM-66) in children with cerebral palsy (CP). The GMFM was completed in 154 children with CP (age range = 6~ 12). The intemal consistency of the GMFM was calculated by Cronbach' s a for judging reliability. The reliability of GMFM-88 and GMFM-66 were both above .99. The validity of measurement obtained by the GMFM was assessed by examining the unidimensionality of items and by comparing Gross Motor Function Classification System (GJVIFCS) levels with tests of the GMFM. Both the GMFM-88 and GMFM-66 were satisfied with unidimensionality. Discriminant validity was demonstrated on significant decreases in scores with increasing GJVIFCS levels in both measurements. However, GJVIFM-66 was a more sensitive discriminant in GJVIFCS level 1 and level 2 and in level 2 and level 4. This study reported a comparison of the reliability and validity of GMFM-88 and GMFM-66. The results of this study have implications for the information on the psychometic properties of two versions of GJVIFM. Ths information will be useful for the selection of tools in clinics