Psychometric Validation of the Autism Impact Measure (AIM)

Richard Houghton, Brigitta Monz, Kiely Law, Georg Loss, Stephanie Le Scouiller, Frank de Vries, Tom Willgoss

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The Autism impact measure (AIM) is a caregiver-reported questionnaire assessing autism symptom frequency and impact in children, previously shown to have good test–retest reliability, convergent validity and structural validity. This study extended previous work by exploring the AIM’s ability to discriminate between ‘known-groups’ of children, and estimating thresholds for clinically important responses. Data were collected online and electronically on computer and mobile devices; hence, it was also possible to confirm other psychometric properties of the AIM in this format. This study provides confirmatory and additional psychometric validation of the AIM. The AIM offers a valid, quick and inexpensive method for caregivers to report core symptoms of autism spectrum disorder (ASD) including communication deficits, difficulties with social interactions and repetitive behaviors.

Original languageEnglish (US)
Pages (from-to)2559-2570
Number of pages12
JournalJournal of Autism and Developmental Disorders
Issue number6
StatePublished - Jun 15 2019


  • Autism spectrum disorder
  • Outcome
  • Psychometric validation
  • Symptoms
  • Treatment

ASJC Scopus subject areas

  • Developmental and Educational Psychology


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