Understanding the differences between autism support levels helps families, educators, and clinicians provide appropriate care. The DSM-5 defines three levels based on the amount of support needed.

Level 1 vs. Level 2 vs. Level 3

Level 1 individuals communicate verbally but struggle with social initiation and flexibility. They generally manage daily tasks independently but need support in specific areas. Level 2 individuals have marked communication deficits, even with supports in place. Their restricted interests and difficulty with change are obvious to observers. Level 3 individuals have severe communication limitations, minimal speech, and extreme difficulty with change and daily functioning.

What the Levels Do Not Tell You

• Levels can change over time with effective intervention
• A person may function at different levels across different skills
• Levels do not indicate intelligence or potential
• Stress, environment, and other factors affect functioning

Why It Matters

Levels help determine therapy intensity and type of support needed. ABA therapy is effective at all levels, with programs tailored to individual support needs. Contact Treetop ABA Therapy for an assessment.