TY - JOUR
T1 - Validation of the fine motor subtest of the Bayley-III with children with sickle cell disease using Rasch analysis
AU - L'Hotta, Allison J.
AU - Hoyt, Catherine R.
AU - Lindsey, Terianne
AU - Abel, Regina A.
AU - Chang, Chih Hung
AU - King, Allison A.
N1 - Funding Information:
This research was funded by a grant from the Human Resources and Services Administration (Grant H46MC09231), Washington University and Institute for Public Health. We also thank Emily Smitson, OTD, for her assistance in data collection. No conflicts of interest.
Funding Information:
This research was funded by a grant from the Human Resources and Services Administration (Grant H46MC09231), Washington University and Institute for Public Health. We also thank Emily Smitson, OTD, for her assistance in data collection.
Publisher Copyright:
© 2020 John Wiley & Sons Ltd
PY - 2020/9/1
Y1 - 2020/9/1
N2 - Background: Children with sickle cell disease (SCD) are at risk for fine motor (FM) delays; however, screening for FM impairments is not common among young children with SCD. The Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III) is the most commonly used performance-based developmental assessment. We aim to determine if the FM subtest of the Bayley-III is structured hierarchically in accordance with development and comprehensively evaluates FM development in children with SCD. Methods: Bayley-III assessments were completed between October 2009 and December 2013. The Bayley-III FM screening test, a shorter and more rapid method of assessing for FM impairments, was not directly administered to participants. Screening test scores were calculated from full Bayley-III scores. Results: Rasch analysis was performed using WINSTEPS. Sixty children with SCD were included in the final Rasch model. The Rasch-generated Wright map, which jointly positions items and persons on the same latent trait, illustrated that the FM items were slightly skewed towards more challenging items, indicating more difficult items may be overrepresented. High item separation values were reported (17.4), and item outfit statistics were less than 1.7. More than one third of items demonstrated overfit, indicating possible item redundancy. The FM subtest and the screening test, a shorter and faster method of assessing skills, were highly correlated (r = 0.993, p < 0.001). Conclusion: The Bayley-III FM subtest is structured hierarchically, aligning with motor development, and comprehensively evaluates FM development in children with SCD. The test could be improved by reordering items, removing overfitting items and modifying screening test items to capture all ranges of development. The screening test is comprehensive and has high potential clinical utility among children with SCD.
AB - Background: Children with sickle cell disease (SCD) are at risk for fine motor (FM) delays; however, screening for FM impairments is not common among young children with SCD. The Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III) is the most commonly used performance-based developmental assessment. We aim to determine if the FM subtest of the Bayley-III is structured hierarchically in accordance with development and comprehensively evaluates FM development in children with SCD. Methods: Bayley-III assessments were completed between October 2009 and December 2013. The Bayley-III FM screening test, a shorter and more rapid method of assessing for FM impairments, was not directly administered to participants. Screening test scores were calculated from full Bayley-III scores. Results: Rasch analysis was performed using WINSTEPS. Sixty children with SCD were included in the final Rasch model. The Rasch-generated Wright map, which jointly positions items and persons on the same latent trait, illustrated that the FM items were slightly skewed towards more challenging items, indicating more difficult items may be overrepresented. High item separation values were reported (17.4), and item outfit statistics were less than 1.7. More than one third of items demonstrated overfit, indicating possible item redundancy. The FM subtest and the screening test, a shorter and faster method of assessing skills, were highly correlated (r = 0.993, p < 0.001). Conclusion: The Bayley-III FM subtest is structured hierarchically, aligning with motor development, and comprehensively evaluates FM development in children with SCD. The test could be improved by reordering items, removing overfitting items and modifying screening test items to capture all ranges of development. The screening test is comprehensive and has high potential clinical utility among children with SCD.
KW - Rasch analysis
KW - developmental disabilities
KW - infant
KW - motor skills
KW - sickle cell disease
UR - http://www.scopus.com/inward/record.url?scp=85087559623&partnerID=8YFLogxK
U2 - 10.1111/cch.12795
DO - 10.1111/cch.12795
M3 - Article
C2 - 32599661
AN - SCOPUS:85087559623
SN - 0305-1862
VL - 46
SP - 576
EP - 584
JO - Child: Care, Health and Development
JF - Child: Care, Health and Development
IS - 5
ER -