ADOS-2 training is widely considered the gold standard in autism assessment, but it’s also one of the most misunderstood. If you’re a professional considering training, here are five things to know before you book.

1. Autism Understanding Has Evolved

The DSM-5 reframed autism as a constellation of traits, not a single-line spectrum. ADOS-2 reflects this nuanced approach.

“ADOS-2 gave me structure to support my instincts with evidence,” says Sarah Phelan, CEO of ASG. “That balance makes assessments both rigorous and human.”

2. ADOS-2 is One Part of the Puzzle

Autism cannot be diagnosed with ADOS-2 alone. A full assessment combines:

• Developmental history (ADI-R)
  
  

• ADHD screening (DIVA-5)
  
  

• Evidence from schools, families, and workplaces
  
  

• Differential diagnosis to rule out other conditions
  
  

3. Training is Just the Start

Think of ADOS-2 like learning to drive: the course introduces you to the toolkit, but confidence comes from practice, coding supervision, and CPD.

🔗 Training

4. Who Can Train?

Typically, professionals in psychology, psychiatry, speech and language therapy, or occupational therapy. In the UK, those with strong autism experience plus supervision may also be eligible.

5. Career Impact is Global

ADOS-2 is internationally recognised, opening doors across the NHS, private practice, and even overseas roles.

“ADOS-2 isn’t just a qualification,” Sarah explains. “It’s a passport to supporting autistic people anywhere in the world.”