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J Autism Dev Disord. 2019 Jun;49(6):2559-2570. doi: 10.1007/s10803-019-04011-2.

Psychometric Validation of the Autism Impact Measure (AIM).

Author information

1
Personalized Health Care Data Science, Real World Data, F. Hoffmann-La Roche Ltd, Grenzacherstrasse. 124, 4070, Basel, Switzerland. richard.houghton@roche.com.
2
School CAPHRI, Maastricht University, Maastricht, The Netherlands. richard.houghton@roche.com.
3
Personalized Health Care Data Science, Real World Data, F. Hoffmann-La Roche Ltd, Grenzacherstrasse. 124, 4070, Basel, Switzerland.
4
Kennedy Krieger Institute, 707 North Broadway, Baltimore, MD, 21205, USA.
5
Johns Hopkins University School of Medicine, 733 North Broadway, Baltimore, MD, 21205, USA.
6
Patient Centered Outcomes Research, Biometrics, Roche Products, Ltd, Falcon Way, Welwyn Garden City, UK.
7
School CAPHRI, Maastricht University, Maastricht, The Netherlands.
8
Department of Clinical Pharmacy & Toxicology, Maastricht UMC+, The Netherlands.

Abstract

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.

KEYWORDS:

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

PMID:
30968318
PMCID:
PMC6546866
DOI:
10.1007/s10803-019-04011-2
[Indexed for MEDLINE]
Free PMC Article

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