title: The relationship of attention-deficit hyperactivity disorder and autism spectrum disorder to adaptive skills in young children.
abstract: OBJECTIVE
  Attention-deficit hyperactivity disorder (ADHD) has been linked to deficits in socialization and communication, similar to those observed in children with ASD. In the present study, we examine the differences in developmental quotient and subscale scores between children with ASD and children with ADHD.
  
  
  METHODS
  We compared the developmental scores in a sample of 2990 children who presented to an early intervention program, who met criteria for ASD, inattentive ADHD, hyperactive/impulsive ADHD, combined ASD/ADHD, or are at risk for developmental disorders.
  
  
  RESULTS
  The overall developmental quotient did not significantly differ between those in the ADHD inattentive and hyperactive subtype groups. Adaptive skills differed most greatly between the ASD groups and the ADHD/atypically-developing groups.
  
  
  CONCLUSIONS
  The present study represents a first step towards understanding the relationship of ADHD to ASD in early childhood. Young children with ASD symptoms are more greatly impaired than those with symptoms of ADHD.
authors.affiliation: a Department of Psychology , Louisiana State University , Baton Rouge , LA , USA.
authors.forename: Nicole
authors.initials: N
authors.lastname: Turygin
authors.affiliation: a Department of Psychology , Louisiana State University , Baton Rouge , LA , USA.
authors.forename: Johnny L
authors.initials: JL
authors.lastname: Matson
authors.affiliation: a Department of Psychology , Louisiana State University , Baton Rouge , LA , USA.
authors.forename: Kimberly
authors.initials: K
authors.lastname: Tureck
mesh_terms: D001289:Attention Deficit Disorder with Hyperactivity / Q000503:physiopathology* / Q000523:psychology; D000067877:Autism Spectrum Disorder / Q000503:physiopathology* / Q000523:psychology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D012917:Social Adjustment; D066107:Social Skills
keywords: ADHD; Battelle Developmental Inventory; autism; child development; early intervention; toddlers