The ABC (Aman & Singh, 1986) is a standardized scale comprising 58 items, for assessing problem behavior in subjects with developmental disabilities. A range of subscales are derived, including externalizing and internalizing disorders as well as more specific co-morbidities such as anxiety, ADHD and PDD.Īberrant Behavior Checklist (ABC). There is a preschool version (1.5-5 years) and a school version (6-18 years). If a child has had a full-scale IQ assessment conducted within one year, this will be accepted in place of an updated evaluation.Ĭhild Behavior Checklist (CBCL): The CBCL (Achenbach 2001 Achenbach & Rescorla, 2000) is a parent completed questionnaire comprising of 100 items (scored on a 3-point likert scale from "not true" to "very true or often true").
#Asd dsm 5 full
This assessment tool is designed to assess a wide range of children and adolescents, from nonverbal/barely verbal children to adolescents and adults with fluent speech.Īll participants will have an updated assessment of full IQ using any one of the following tools: the Stanford-Binet V (Roid, 2003), Wechsler Intelligence Scales for Children IV (Wechsler, 2003), the Wechsler Preschool and Primary Scale of Intelligence - Third Edition (Wechsler, 2002), Differential Ability Scales, 2nd Edition, (Elliot, 2007), Wechsler Abbreviated Scale of Intelligence 2 (Wechsler, 2011) or Mullen Scales of Early Learning AGS Edition (Mullen, 1989). The ADOS2 is a standardized, interactive protocol for direct observation (45 minutes) of social and communicative behavior associated with ASD, and consists of structured and semi-structured methods for interaction. The following measures will be obtained:Īll participants will be administered the Autism Diagnostic Observation Schedule 2 (Lord et al., 2012). The only exclusion criteria will be when the ADOS is determined by the clinician to be "invalid." Examples may include a child who is extremely non-compliant, severely depressed, or unresponsive. Therefore, the only inclusion criteria will be that the child be between 2.0 and 17.11 years of age and be referred for an ATN diagnostic evaluation. Both subjects who are found to meet criteria of ASD/PDD and those who do not meet criteria (after completing the ATN assessment) will be enrolled. Participants must be between the ages of 2.0 and 17.11 years who undergo an ATN assessment at one of the seven sites. Parents (along with child assent and/or consent, depending upon the study site) will sign informed consent to participate in the study. An IRB submission and consent form will be developed for each of the participating programs. Hypothesis 2: Lower IQ will be associated with higher DSM-IV/DSM-5 concordance.įamilies and children will be recruited from seven sites affiliated with the Autism Treatment Network.
Hypothesis 1: DSM-5 diagnostic criteria will have good specificity but poor sensitivity when comparing results with DSM-IV-TR ASD diagnostic criteria.
The study will involve the following aims and hypotheses:Īim 1: To prospectively compare DSM-IV-TR and DSM-5 criteria for Autism Spectrum Disorder in a sample of 250 children and adolescents who meet DSM-IV-TR criteria for ASD.Īim 2: To examine the impact of IQ, comorbid behavior problems, age and ASD symptom severity on the specificity and sensitivity of DSM-5 diagnostic criteria.
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