Autism Test for Children: Online Screening & What to Expect
Take our free screening now — answer a short set of parent-friendly questions about your child's behaviour and development. You will receive an immediate indication of whether a professional autism evaluation is recommended. The screening takes approximately 5–10 minutes and is suitable for children aged 18 months to 16 years.
Wondering if your child might be on the autism spectrum? Our autism screening checklist covers the key signs across different ages. Note: an online checklist cannot diagnose autism — it helps you decide whether to seek a professional evaluation. For a comprehensive overview of the condition, see our guide to understanding autism in children. At Cadabam's CDC, our developmental pediatricians and child psychologists conduct comprehensive autism assessments using gold-standard tools (ADOS-2, ADI-R) alongside clinical observation.
Meet our pediatric neurologists who specialise in this area.
Why Take an Autism Test?
Early Signs That Prompt Screening
Parents often notice subtle clues before a formal diagnosis:
- Toddlers who avoid eye contact, miss speech milestones, or line up toys repetitively.
- Teens who struggle with friendships, sarcasm, or sudden academic dips.
- Adults who “mask” social exhaustion or feel different their entire lives.
If any of these resonate, an autism test can help.
Benefits of Early Diagnosis
- Access to therapy when the brain is most adaptable.
- School accommodations that reduce stress and boost performance.
- Family guidance so caregivers feel confident, not confused.
Difference Between Screening and Full Assessment
- Screening (5–10 minutes online) flags potential traits.
- Assessment (90 minutes in clinic) confirms diagnosis using gold-standard tools like ADOS-2 and ADI-R.
Who Should Take Our Autism Test?
Parents Noticing Developmental Delays in Toddlers
Early autism testing for toddlers (as young as 18 months) can redirect developmental trajectories.
Teens Struggling Socially or Academically
Sudden isolation or falling grades may indicate undiagnosed autism in teenagers.
Adults Suspecting Lifelong Spectrum Traits
It’s never too late. Our autism assessment for adults often brings relief after decades of questions.
Types of Autism Tests We Offer
Online Screening Questionnaire (5–10 min)
- Free and anonymous.
- Instant risk indicator emailed to you.
- Tailored for autism test for kids, teens, or adults.
In-Clinic Comprehensive Assessment (90 min)
- One-on-one with licensed specialists.
- Combines interviews, observations, and standardized tasks.
- Results within three working days.
ADOS-2 & ADI-R Gold-Standard Tools
- ADOS-2 evaluates communication, play, and social interaction.
- ADI-R gathers developmental history from parents or partners.
- Worldwide benchmark for autism diagnostic criteria.
Step-by-Step Process to Get Tested
Step 1: Book Your Slot
Reserve online or call our 24/7 helpline—weekday or weekend autism testing slots available.
Step 2: Complete Pre-Visit Forms
Short digital forms help us tailor the assessment to your child’s or your unique needs.
Step 3: Attend the Assessment Session
Arrive at our child-friendly centre in Bangalore; sensory rooms keep anxiety low.
Step 4: Receive Detailed Report & Next-Step Plan
Leave with a clear diagnosis, therapy recommendations, and school-support letters if needed.
What to Expect During Your Visit
Assessment Room Set-Up to Reduce Anxiety
- Soft lighting, noise-cancel headphones, and fidget toys.
- Separate quiet zones for parents and siblings.
What Questions We Ask
- Play patterns and sensory preferences (for kids).
- Friendship history and daily routines (for adults).
How Long Results Take
Most families receive their autism diagnosis report within 72 hours.
Supportive Environment for Kids
Certified child-life specialists guide play-based assessments, ensuring smiles replace stress.
What Does the Screening Measure?
Our autism screening evaluates three core domains based on established clinical criteria:
- Social communication and interaction — eye contact, response to name, joint attention (pointing and showing), conversational reciprocity, and understanding of social cues
- Restricted and repetitive behaviours — repetitive movements, insistence on sameness, intense or unusual interests, and sensory sensitivities
- Developmental milestones — language development, play patterns, and adaptive skills appropriate to your child’s age
The screening draws from validated instruments including the Modified Checklist for Autism in Toddlers (M-CHAT-R/F) for younger children and broader developmental screening tools for older children. Results indicate whether your child’s developmental profile warrants professional evaluation — not whether they have autism. Only a comprehensive clinical assessment can confirm or rule out a diagnosis.
If you are unsure whether your child’s language delays might indicate autism, our guide on is it speech delay or autism? can help clarify the key differences.
Age Ranges: Which Children Can Be Screened?
This screening is designed for children from 18 months to 16 years. However, the signs evaluated differ by age:
- 18 months – 3 years: Focuses on early developmental milestones — babbling, pointing, eye contact, response to name, pretend play, and sensory responses
- 4–7 years: Evaluates social play, peer interaction, language use in conversation, rigidity, and sensory behaviours in structured settings
- 8–12 years: Assesses friendship patterns, understanding of social nuance, academic unevenness, emotional regulation, and anxiety
- 13–16 years: Covers social masking, identity and self-awareness, mental health co-occurrence, and executive function challenges
For very young children (under 18 months), speak directly with your paediatrician about developmental concerns. The earlier autism is identified, the more effective early intervention can be.
What Happens After the Screening?
If the Screening Suggests Further Evaluation
A positive screening result means your child’s developmental profile shows patterns consistent with autism spectrum traits. The next step is a comprehensive professional assessment at Cadabam’s CDC, which includes:
- Parent interview — detailed developmental and behavioural history
- ADOS-2 assessment — gold-standard observational evaluation of communication, play, and social interaction
- Cognitive and language testing — to understand your child’s full profile
- Multidisciplinary team review — our psychologists, speech therapists, and developmental specialists review all findings together
- Detailed report and next-step plan — diagnosis (if applicable), therapy recommendations, and school support letters
The full assessment typically spans 2–3 sessions over 7–10 days. Many families also benefit from understanding autism vs ADHD differences, as these conditions frequently co-occur and can complicate the diagnostic picture.
If the Screening Does Not Flag Concerns
A negative screening does not guarantee your child is not autistic — particularly for girls and older children who may mask their difficulties effectively. Girls can sometimes pass autism screenings and still be autistic due to social camouflage. If your concerns persist, trust your instincts and book a professional evaluation. You may also find it helpful to explore ADHD signs specific to girls, as ADHD is another commonly missed condition in girls.
Frequently Asked Questions
How accurate is an online autism screening?
Online autism screenings are designed to identify children who may benefit from professional evaluation — they are not diagnostic tools. Validated instruments like the M-CHAT-R/F have a sensitivity of approximately 85%, meaning they correctly identify most children with autism. However, false positives occur (especially in children with speech delays or anxiety), and false negatives are possible in children who mask well. The screening is a first step, not a final answer.
At what age should a child be screened for autism?
The American Academy of Pediatrics recommends universal autism screening at 18 months and 24 months, regardless of whether parents have concerns. Additional screening should occur at any age if developmental concerns arise. Our screening tool is validated for children aged 18 months to 16 years. Earlier screening leads to earlier intervention, which is associated with better long-term outcomes.
What happens after a positive autism screening?
A positive screening means a professional evaluation is recommended. At Cadabam’s CDC, this involves a comprehensive assessment using gold-standard tools (ADOS-2, ADI-R) conducted by our multidisciplinary team. The evaluation typically takes 2–3 sessions, and families receive a detailed report with diagnosis, therapy recommendations, and school support guidance within 7 days.
Can girls pass autism screenings and still be autistic?
Yes. Girls with autism often develop sophisticated social camouflaging strategies — copying peers’ behaviour, maintaining surface-level friendships, and internalising distress rather than displaying it externally. These masking behaviours can result in screening scores that fall below clinical thresholds, even when the child is struggling significantly. If you have concerns about your daughter, seek a specialist evaluation that considers the female presentation of autism.
How long does a formal autism assessment take?
A comprehensive autism assessment at Cadabam’s CDC typically requires 2–3 sessions spread over 7–10 days. Each session lasts 60–90 minutes. This phased approach allows our team to gather information from multiple sources (parents, teachers, direct observation), reduces child fatigue, and produces the most accurate results. Most families receive their detailed report within 7 days of the final session.
Medically reviewed by Archana Sagar, Clinical Psychologist, Cadabam’s CDC. Last reviewed April 2026.