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Do Children with Fragile X Syndrome Show Declines or Plateaus in Adaptive Behavior?
Hahn, Laura J. Brady, Nancy C. Warren, Steven F. Fleming, Kandace
Hahn, Laura J.
Brady, Nancy C.
Warren, Steven F.
Fleming, Kandace
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Abstract
This study explores if children with fragile X syndrome (FXS) show advances, declines, or plateaus in adaptive behavior over time and the relationship of nonverbal cognitive abilities and autistic behavior on these trajectories. Parents of 55 children with FXS completed the Vineland Adaptive Behavior Scales between 3 and 6 times from 2 to 10 years of age. Using raw scores, results indicate that about half of the sample showed advances in adaptive behavior, while the other half showed declines, indicating a regression in skills. Children who were more cognitively advanced and had less autistic behaviors had higher trajectories. Understanding the developmental course of adaptive behavior in FXS has implications for educational planning and intervention, especially for those children showing declines.
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Date
2015-09-01
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American Association on Intellectual and Developmental Disabilities
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Keywords
Fragile X syndrome, Adaptive behavior, Developmental trajectory
Citation
Hahn, Laura J., Nancy C. Brady, Steven F. Warren, and Kandace K. Fleming. "Do Children With Fragile X Syndrome Show Declines or Plateaus in Adaptive Behavior?" American Journal on Intellectual and Developmental Disabilities 120.5 (2015): 412-32.