{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T18:52:43Z","timestamp":1787943163044,"version":"build-2784847793"},"reference-count":30,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2012,3,14]],"date-time":"2012-03-14T00:00:00Z","timestamp":1331683200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Develop Med Child Neuro"],"published-print":{"date-parts":[[2012,5]]},"abstract":"<jats:p><jats:bold>Aim\u2002<\/jats:bold> The aim of this article was to determine item measurement properties of a set of items selected from the Gillette Functional Assessment Questionnaire (FAQ) and the Pediatric Outcome Data Collection Instrument (PODCI) using Rasch analysis, and to explore relationships between the FAQ\/PODCI combined set of items, FAQ walking scale level, Gross Motor Function Classification System (GMFCS) levels, and the Gait Deviation Index on a common measurement scale.<\/jats:p><jats:p><jats:bold>Method\u2002<\/jats:bold> Rasch analysis was performed on data from a retrospective chart review of parent\u2010reported FAQ and PODCI data from 485 individuals (273 males; 212 females; mean age 9y 10mo, SD 3y 10mo) who underwent first\u2010time three\u2010dimensional gait analysis. Of the 485 individuals, 289 had a diagnosis of cerebral palsy (104 GMFCS level I, 97 GMFCS level II, 69 GMFCS level III, and 19 GMFCS level IV). Rasch\u2010based person abilities and item difficulties based on subgroups defined by the FAQ walking scale level, Gait Deviation Index, and the GMFCS level were compared.<\/jats:p><jats:p><jats:bold>Results\u2002<\/jats:bold> The FAQ\/PODCI item set demonstrated necessary Rasch characteristics to support its use as a combined measurement scale. Item groupings at similar difficulty levels were consistent with the mean person abilities of subgroups based on FAQ walking scale level, Gait Deviation Index, and GMFCS level.<\/jats:p><jats:p><jats:bold>Interpretation\u2002<\/jats:bold> Rasch\u2010derived person ability scores from the FAQ\/PODCI combined item set are consistent with clinical measures. Rasch analysis provides insights that may improve interpretation of the difficulty of motor functions for children with disabilities.<\/jats:p>","DOI":"10.1111\/j.1469-8749.2012.04231.x","type":"journal-article","created":{"date-parts":[[2012,3,14]],"date-time":"2012-03-14T06:41:27Z","timestamp":1331707287000},"page":"443-450","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":23,"title":["Rasch analysis of items from two self\u2010report measures of motor function: determination of item difficulty and relationships with children\u2019s ability levels"],"prefix":"10.1111","volume":"54","author":[{"given":"JEAN L","family":"STOUT","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"suffix":"III","given":"GEORGE E","family":"GORTON","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"TOM 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