Marilyn J. Monteiro, Ph.D., is a licensed psychologist and expert in diagnosing autism spectrum disorders. During her 25-year career, Dr. Monteiro has evaluated more than 4,000 children on the autism spectrum. Her clinical work focuses on evaluating children and training other professionals. She helps educators and clinicians across the United States better understand and use her methods for diagnosing and working with children on the autism spectrum and their families.

Dr. Monteiro’s published works include the book Autism Conversations: Evaluating Children on the Autism Spectrum through Authentic Conversations. The book was written for autism evaluators, the parents of children who might be on the autism spectrum, and members of the general public interested in autism. The book is available from the publisher Western Psychological Services.

The test, Monteiro Interview Guidelines for Diagnosing Asperger’s Syndrome: A Team-Based Approach (MIGDAS), is a qualitative interview protocol for clinicians who evaluate verbal children and adolescents who may have high-functioning forms of autism, including Asperger’s Syndrome. The test is sold to professional evaluators by Western Psychological Services.

Dr. Monteiro is a frequent speaker at national and international conferences, speaking on autism issues and autism evaluation. Dr. Monteiro consults with school districts across the country, training and supporting best practice autism evaluations in school settings. In her office practice, in addition to evaluating children, adolescents and adults, Dr. Monteiro provides consultation support for families connected with an individual with autism spectrum differences. She thoroughly enjoys having conversations with individuals on the autism spectrum.

Marilyn J. Monteiro’s educational degrees and professional memberships are listed below.


B.A. in Psychology and Education, Grinnell College, Grinnell, IA
M.A. in Psychology (Experimental Analysis of Behavior), Drake University, Des Moines, IA
Ph.D. in Psychology (Applied Behavior Analysis), Western Michigan University, Kalamazoo, MI
Post-graduate Internship in family systems therapy, Southwest Family Institute, Dallas, TX

Professional Organizations

American Psychological Association (APA)

National Association of School Psychologists (NASP)
American Association of Marriage and Family Therapists (AAMFT)
Autism Society of America (ASA)
Texas Psychological Association (TPA)
Texas Association of School Psychologists (TASP)
Southwest Psychological Association (SWPA)