The construct validity and reliability of the Motor Development List for the assessment of motor skills in children with profound intellectual and multiple disabilities: The next step?

Research output: Contribution to journalArticleAcademicpeer-review

15 Downloads (Pure)

Abstract

Background: There are no psychometrically validated instruments available to measure motor skills of children with profound intellectual and multiple disabilities (PIMD). In this study, the construct validity and reliability (Rho) of the Motor Development List for children with PIMD (MDL-PIMD), a proxy-reported measure, was investigated. Methods: The MDL-PIMD was filled in by parents of 52 children with PIMD every six months over a period of two years. The items of the original MDL were categorised into subscales. A Mokken scale analysis for polytomous items was conducted for five subscales (Posture, Locomotion, Reaching, Grabbing and Facial Actions). Results: Several items were deleted to improve scalability. All scales showed good scalability (range scale H.66-.78) and reliability (range Rho.92-.98). Conclusions: The MDL-PIMD seems to be a valid and reliable instrument for assessing the motor skills of children with PIMD, although more research is needed to confirm the factorial structure.

Original languageEnglish
Pages (from-to)370-383
Number of pages14
JournalJournal of Intellectual and Developmental Disability
Volume48
Issue number4
DOIs
Publication statusPublished - 2023

Keywords

  • assessment
  • Mokken scale analysis
  • motor skills
  • Profound intellectual and multiple disabilities
  • reliability
  • validity

Cite this