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Monteiro Interview Guidelines for Diagnosing the Autism Spectrum, Second Edition

Marilyn J. Monteiro, PhD, and Sheri Stegall, PhD

Provides a method to gather and organize information needed to diagnose ASD in children and adults
Paper and pencil
Age range:
3 years to 99 years
30–90 minutes, depending on format
Qualification level:
A degree, certificate, or license to practice in a health care profession or occupation, including (but not limited to) the following: medicine, neurology, nursing, occupational therapy and other allied health care professions, physician's assistants, psychiatry, social work; plus appropriate training and experience in the ethical administration, scoring, and interpretation of clinical behavioral assessment instruments. Certain health care providers may be eligible to purchase selected "B" and "C" level instruments within their area of expertise. Specifically, relevant supervised clinical experience using tests (i.e., internship, residency, etc.) in combination with formal coursework ( i.e., Tests and Measurement, Individual Assessment, or equivalent) qualifies a health care provider to purchase certain restricted products. Any PAR Customer already qualified to purchase a "B" or "C" level product, is also qualified to purchase an "S" level product. If you are not already qualified to purchase a "B"or "C" level product from PAR, please download and complete the special Qualification Form for Medical and Allied Health Professionals. (You will need Adobe Acrobat to view.) Close

The MIGDAS-2 provides a sensory-based process for gathering and organizing the qualitative information needed to diagnose autism in children, adolescents, and adults. The process includes guidelines for gathering information from parents/caregivers and teachers, and for conducting a sensory-based interview with the individual being evaluated. The end result is a comprehensive behavioral profile that describes the individual’s distinct way of relating to the world, supplementing assessment scores and informing diagnosis and treatment planning.

Features and benefits

  • Includes interactive interview techniques that provide detailed, concrete guidelines for conducting interactive diagnostic interviews with children, adolescents, and adults suspected of having ASD.
  • Provides structured guidelines for obtaining key information from parents and caregivers and teachers about the individual's behavior in home and school settings. 
  • Guides the evaluator to make a diagnosis based on direct interactions with the individual being evaluated and the individual's parents/caregivers and teachers. 
  • Provides a system for evaluators to gather distinctive examples of behavior patterns often seen in individuals with ASD by emphasizing the use of sensory materials and encouraging discussion of areas of high interest to the individual.
  • Facilitates writing a narrative evaluation report and providing diagnostic feedback using language that is easily understood by parents and others involved in the individual’s care.
  • Provides an organized, systematic way to elicit and document an individualized behavioral profile descriptive of the singular presentation of ASD in order to better inform autism diagnosis and treatment planning.
  • Ideally suited for a variety of settings, including private practices, schools, and hospitals.
  • Integrates the multiple sources of information that must be considered when diagnosing ASD and helps those involved in the evaluation process better understand the way in which autism spectrum differences specifically affect the individual being evaluated.
  • Assists evaluators when considering comorbidity and making differential diagnoses, writing narrative evaluation reports, and providing diagnostic feedback to participants in the evaluation process.

Test structure

The MIGDAS-2 includes five evaluation protocols:

  • The Parent/Caregiver Questionnaire and the Teacher Questionnaire provide detailed sets of questions designed to gather a comprehensive narrative about the individual being evaluated from the point of view of his or her parents and/or teachers. The questionnaires can be used to facilitate an in-person interview or can be completed independently by having parent/caregivers or teachers write their responses directly on the form.
  • The Diagnostic Interview protocols are the cornerstone of the MIGDAS-2 assessment process. These protocols guide evaluators through the process of collecting and documenting samples of the individual's behavior in the three key areas of development that are affected in ASD: Sensory Use and Interests, Language and Communication, and Social Relationships and Emotional Responses.
  • The Diagnostic Interview for Individuals With Limited to No Verbal Fluency is designed for use with individuals who have not yet acquired the use of functional language. It is suitable for use with young children (i.e., preschool-aged children and toddlers who are able to engage in sensory-based play), as well as with older children, adolescents, and adults who display limited language and accompanying intellectual impairment.
  • The Diagnostic Interview for Children and Adolescents With Verbal Fluency is designed for use with children and adolescents who use language in a fluent capacity or who have acquired language but whose fluency is still emerging (i.e., language is not yet used with full fluency across settings or topics). It is appropriate for use with children as young as preschool age as well as with older children and adolescents.
  • The Diagnostic Interview for Adults With Verbal Fluency is designed for use with adults who have acquired language skills and use language in a fluent capacity. It is also appropriate for use with verbally fluent adolescents transitioning to adulthood. The interview is structured so that the evaluator has the option of including the individual’s adult partner or parents/caregivers in the session.

Note: The MIGDAS-2 interviews require the use of common, sensory-based toys and materials (not included in the kit purchase). The use of these materials and suggestions for building a sensory-based materials kit are described in the manual.