Journal of Autism and Developmental Disorders

, Volume 44, Issue 1, pp 168–179

The Autism Impact Measure (AIM): Initial Development of a New Tool for Treatment Outcome Measurement


    • University of Missouri
    • Department of Health Psychology, Thompson Center for Autism and Neurodevelopmental DisordersUniversity of Missouri
  • Micah O. Mazurek
    • University of Missouri
  • Darryn Sikora
    • Providence Neurodevelopmental Center for Children
  • Jayne Bellando
    • University of Arkansas for Medical Sciences
  • Lee Branum-Martin
    • Georgia State University
  • Benjamin Handen
    • University of Pittsburgh
  • Terry Katz
    • University of Colorado School of Medicine
  • Brian Freedman
    • University of Delaware
  • Mary Paige Powell
    • Cornerstone Behavioral Medicine
  • Zachary Warren
    • Vanderbilt Kennedy Center
Original Paper

DOI: 10.1007/s10803-013-1862-3

Cite this article as:
Kanne, S.M., Mazurek, M.O., Sikora, D. et al. J Autism Dev Disord (2014) 44: 168. doi:10.1007/s10803-013-1862-3


The current study describes the development and psychometric properties of a new measure targeting sensitivity to change of core autism spectrum disorder (ASD) symptoms, the Autism Impact Measure (AIM). The AIM uses a 2-week recall period with items rated on two corresponding 5-point scales (frequency and impact). Psychometric properties were examined using a large sample (n = 440) of children with ASD enrolled in the Autism Treatment Network. The exploratory factor analysis indicated four factors and resulted in a 25-item questionnaire with excellent overall model fit. Test–retest reliability, cross-informant reliability, and convergent validity with other measures of ASD symptoms and overall functioning were strong. The AIM is a reliable and valid measure of frequency and impact of core ASD symptoms.


Autism spectrum disorderOutcomeTreatmentSymptomsImpairment

Copyright information

© Springer Science+Business Media New York 2013