title: The Parent Interview for Autism-Clinical Version (PIA-CV): a measure of behavioral change for young children with autism.
abstract: The Parent Interview for Autism-Clinical Version (PIA-CV) was developed to measure autism symptom severity across a wide range of behavioral domains. Two studies were conducted to examine the psychometric properties of the PIA-CV for a sample of children under 3 years old. Results of study 1 revealed adequate internal consistency for nine of the 11 PIA-CV dimensions, as well as significant group differences on social-communication domains between 2-year-old children with autism and a developmentally matched sample. Study 2 examined the association between changes in PIA-CV scores and changes in autism symptomatology from age 2 to age 4. Results revealed that changes on PIA-CV dimensions assessing social and communication skills were associated with clinically significant behavioral and diagnostic improvements. These findings support the utility of the PIA-CV for obtaining ecologically valid information from parents and for measuring behavioral change in young children with autism.
authors.affiliation: Vanderbilt University, Vanderbilt Child Development Center, Nashville, TN 37232-3573, USA. wendy.stone@vanderbilt.edu
authors.forename: Wendy L
authors.initials: WL
authors.lastname: Stone
authors.forename: Elaine E
authors.initials: EE
authors.lastname: Coonrod
authors.forename: Stacie L
authors.initials: SL
authors.lastname: Pozdol
authors.forename: Lauren M
authors.initials: LM
authors.lastname: Turner
mesh_terms: D001321:Autistic Disorder / Q000175:diagnosis / Q000473:pathology / Q000523:psychology*; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007406:Interview, Psychological / Q000379:methods*; D008297:Male; D010287:Parent-Child Relations; D011594:Psychometrics; D012720:Severity of Illness Index