Date of Award
Spring 5-9-2015
Degree Type
Thesis
Degree Name
Master of Arts (MA)
Department
Psychology
First Advisor
Diana L. Robins
Second Advisor
Lauren B. Adamson
Third Advisor
Christopher Henrich
Abstract
Although Autism Spectrum Disorder (ASD) is considered to be a lifelong condition, some toddlers experience diagnostic instability over time. In particular, some toddlers’ diagnosis changes between ASD and Global Developmental Delay (GDD). However, little is known about the subset of children who change diagnosis. In a total of 424 toddlers who either maintained or changed diagnosis, the current study identified predictors of change in diagnosis and severity in those who change from ASD to non-ASD (ASD-NON), ASD to GDD (ASD-GDD), non-ASD to ASD (NON-ASD), and GDD to ASD (GDD-ASD) between two years old and four years old. Initial ASD symptom severity and participation in intervention services were predictive of all transitions. Additionally, receptive language predicted ASD-NON transition and socioeconomic status predicted ASD-GDD transition. Implications for informing prognosis of children, identifying targets of intervention, refining of screening and diagnostic measures, and measuring change in severity regardless of categorical change are discussed.
DOI
https://doi.org/10.57709/7029986
Recommended Citation
Abrams, Danielle N.; Robins, Diana L.; Adamson, Lauren B.; and Henrich, Christopher, "Identifying Predictors of Diagnostic Instability of Autism Spectrum Disorder and Global Developmental Delay In Toddlers." Thesis, Georgia State University, 2015.
doi: https://doi.org/10.57709/7029986