Category: Measurement; Pediatric Rehabilitation
To determine if the Fine Motor subtest of the Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III) is structured hierarchically and comprehensively evaluates fine motor development in young children ages 1-42 months.
Prospective cohort study.
Assessments were completed in a private room at St. Louis Children’s Hospital.
Participants (or Animals, Specimens, Cadavers) :
Infants and toddlers with SCD. Assessments were completed between October 2009 and December 2013. Sixty-four children were included; 60 children with SCD and 4 sibling controls. Forty were assessed with the Bayley-III multiple times. Repeat assessments were completed every 3-months for children.
Main Outcome Measure(s) :
The Bayley-III Fine Motor subtest (66 item maximum). The Fine Motor Screening Test (26 item maximum) was not directly administered, scores were calculated from full test scores.
Rasch analysis was performed using WINSTEPS version 4.2.0. The Wright map, which jointly positions items and persons on the same latent trait, was slightly skewed towards higher ability level and more challenging items. High item separation values were reported (Bayley-III: 13.5; Screening Test: 17.32) and item fit statistics were all
The Bayley-III Fine Motor subtest is structured hierarchically, aligning with motor development, and comprehensively evaluates fine motor development in young children. The test could be improved by reordering items, removing items with outfit, and modifying Screening Test items to capture all ranges of development. The Screening Test is comprehensive and has high potential clinical utility.
Allison L'Hotta– Occupational Therapist, PhD Student, Washington University School of Medicine, St. Louis, Missouri
Catherine Hoyt– Occupational Therapist/Predoctoral Fellow, Washington University School of Medicine, St. Louis, Missouri
Terianne Lindsey– Nurse Practitioner, Washington University School of Medicine, St. Louis, Missouri
Regina Abel– Instructor in Occupational Therapy, Washington University School of Medicine, St. Louis, Missouri
Allison King– Associate Professor, Washington University School of Medicine, St. Louis, Missouri
Chih-Hung Chang– Professor, Washington Univeristy in St. Louis, St. Louis, Missouri