Physical Therapy Korea (한국전문물리치료학회지)

Korean Research Society of Physical Therapy (한국전문물리치료학회)
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Comparison of Reliability and Validity Between GMFM-88 and GMFM-66 in Children With Cerebral Palsy

GMFM-88과 GMFM-66의 신뢰도와 타당도 비교

  • Park, Eun-Young (Dept. of Secondary Special Education, College of Education, Jeonju University) ;
  • Park, So-Yeon (Dept. of Physical Therapy, College of Alternative Medicine, Jeonju University)
  • 박은영 (전주대학교 사범대학 중등특수교육과) ;
  • 박소연 (전주대학교 대체의학대학 물리치료학과)
  • Received : 2010.06.04
  • Accepted : 2010.07.22
  • Published : 2010.09.17
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Abstract

The purposes of this study were to compare the reliability and validity 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 internal consistency of the GMFM was calculated by Cronbach's ${\alpha}$ 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 (GMFCS) 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 GMFCS levels in both measurements. However, GMFM-66 was a more sensitive discriminant in GMFCS 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 psychometric properties of two versions of GMFCS. This information will be useful for the selection of tools in clinics.

Keywords

References

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