Colleague Connection

ESDM & ADOS Training

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.

How to Become Certified in the Early Start Denver Model

ESDM Trainings



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). 

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.