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(p. 3) Conducting Diagnostic Screening and Assessment 

(p. 3) Conducting Diagnostic Screening and Assessment
(p. 3) Conducting Diagnostic Screening and Assessment

Johnny L. Matson

, Jennifer S. Beighley

, Lindsey W. Williams

, and Anna C. May

Page of

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date: 07 July 2020

Efficient screening and assessment are critical to treating autism spectrum disorders (ASD), with implications for funding and service provision. Valid and reliable measures are needed not only for diagnosis but also to assess progress across the life span and to measure frequently co-occurring problems. Great variability in adaptive behaviors, symptoms, and co-occurring conditions across individuals with ASD; there is no “one-size-fits-all” approach to ASD assessment. Practitioners must consider many variables when choosing the most accurate yet economical assessment procedures for each individual. This chapter includes an overview of assessment methods and techniques with special consideration for early detection, differential diagnosis, co-occurring conditions, intellectual disability, and testing accommodations. Clinicians are urged to bear these issues in mind as definitions of and research into autism spectrum disorders continue to evolve.

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