Autism Spectrum Disorder Diagnostic Assessment

Holland Center offers a comprehensive diagnostic assessment for suspected autism spectrum disorders.

Overview of the Diagnostic Assessment Process:
Our staff psychologist administers a series of parent questionnaires, including the Autism Diagnostic Interview, conducts formal cognitive testing with the child, and performs the Autism Diagnostic Observation Schedule (ADOS) with the child.  Our speech and language pathologist will conduct formal language testing, and a comprehensive and diagnostic report will be written and provided to you upon feedback of the evaluation. 

Evaluation Schedule:
The assessment is conducted across 2 separate days during the same week, typically on Tuesday from 9am-12pm and Thursday from 1pm– 4pm. The following outline is a breakdown of what your evaluation days will look like:

Tuesday – Day 1: Questionnaires, IQ, & Language

9:00 – Parent will meet with psychologist, receive explanation of testing process, discuss reporting of results, and receive instructions on completing questionnaires. This will also be the initial observation of child.

9:30 – Psychologist administers WPPSI, WISC, or Mullen (IQ/cognitive testing), Parent completes Vineland Adaptive Behavior Scales and Social Communication Questionnaire.

10:30 – Speech and Language Pathologist administers PLS, CELF-4, or CELF-P (language testing), Parent completes Vineland Adaptive Behavior Scales and Social Communication Questionnaire

11:30 – Parent meets with psychologist to go over questionnaires, answer initial questions, and go over testing process for Day 2.

12:00- End of Day
Total 3:00 hours

Thursday– Day 2: Parent Interview, ADOS

***Note: The first two hours of the evaluation are with the parent only on this day. Your child will need to be brought to Holland Center at 2:45pm to complete testing. ***

1:00– Autism Diagnostic Interview – Revised with parent and psychologist.

3:00– Autism Diagnostic Observation Schedule is conducted with the child. Parent may or may not participate in this part of the assessment, depending on age/developmental level of the child.

3:45 – Wrap up, psychologist will discuss the next steps with the parent, when they can expect results, and schedule a feedback session.

4:00- End of Day 2 
Total: 3:00 hours

At the completion of your evaluation, you will schedule a feedback session, which typically will last about 1 hour, at which you will receive the completed written report of your child’s assessment and results will be discussed with your family.  You will also have the opportunity to ask any questions regarding your child’s diagnosis and steps to take to obtain services for them.  You will be provided with information about available services within the community that are available to meet your child’s needs.

For additional information, please contact us at 952-401-9359 or email 

Holland Center
10273 Yellow Circle Dr.
Minnetonka, MN 55343

Holland Center on Facebook