ESDM & ADOS Training

The department periodically offers ADOS and/or ESDM trainings. Click the link below to see our course schedules.

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What is the Early Start Denver Model (ESDM)?

The Early Start Denver Model (ESDM) is an evidence-based intervention specifically developed for very young children with autism. ESDM is a play-based intervention that fuses behavioral and developmental principles into an integrated approach. ESDM can be implemented in different natural settings such as the home or the daycare/preschool by trained therapists as well as parents within play and daily routines. ESDM aims to reduce the symptoms of autism and target all developmental areas.

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How to Become Certified in the Early Start Denver Model

Professionals who work regularly with 12-48 month aged children with Autism Spectrum Disorder (ASD) and have educational degrees beyond a bachelor’s or the academic equivalent from their country of origin need to follow these steps to become certified in the ESDM:

Step 1: Order the ESDM Manual

Read the training manual entitled, The Early Start Denver Model for Young Children with Autism: Promoting Language, Learning, and Engagement. The manual describes a developmental, naturalistic, and relationship-based approach for fostering children’s initiative and engagement and scaffolding their communication and interaction.

Step 2: Attend Workshop

After reading the manual, there are two workshops available for training in the ESDM. The Introductory Workshop addresses the main aspects of the ESDM but is not intended to train professionals to fidelity. The Advanced Workshop includes interactive sessions with children with ASD in order to equip professionals with the information, skills, and resources necessary to correctly implement the ESDM within their organization. Professionals will be required to submit follow-up training materials to demonstrate their continued competency in the ESDM following the Advanced Training Workshop.

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Step 3: Submit Training Materials for Certification

After participation in the Advanced Workshop, trainees will need to demonstrate fidelity in two separate cases submissions in order to receive an ESDM Therapist Certificate. You can register for Supervision here


The Autism Diagnostic Observation Schedule, Second Edition (ADOS-2) improves an instrument already viewed as "the gold standard" for observational assessment of autism spectrum disorder (ASD). 

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ADOS-2 Trainings


If you want to use the ADOS-2 for research purposes, you must establish reliability on the measure. The process involves first attending an ADOS-2 training for clinicians and then attending an ADOS-2 research training. This training is two and a half days and involves more intensive instruction on the psychometrics of the instrument, working in small groups on administering and scoring the ADOS-2, and discussion and question/answer about specific administration and coding issues. 

Prior to attending training, you will need to have access to an ADOS-2 manual and kit. ADOS-2 kits, manuals and protocols are available through Western Psychological Services at 1-800-648-8857 or at After the workshop, you will be provided with DVD administrations of the ADOS-2 and scored protocols to view and score for reliability. You will then send two post course DVD recordings of yourself administering different ADOS-2 modules (1 DVD must be either a Toddler, 1 or 2 and the other must be a 3 or 4) and respective scored protocols within three months of your training. For more information, contact Dr. Costanza Colombi.



For more information contact Dr. Costanza Colombi at