An online ADHD assessment typically costs $189 to $900 in the United States, with many popular platforms like ADHD Online setting the price at a specific $189 for a comprehensive psychologist-reviewed questionnaire[3][5][6]. In the UK, basic online assessments start around £495 for adults and £795 for children, ranging up to £2,850 for comprehensive evaluations[1][4]. Key Cost Breakdown by Region and Service Type Region/Service Type Price Range Notable Examples US – Initial Screening $150 – $300 Quick, accessible screenings; may not yield a formal diagnosis for all accommodations[3][6] US – Full Online Diagnosis $189 – $900 ADHD Online ($189), Siya Health ($199)[5][9] US – Comprehensive In-Person $1,000 – $5,000+ Neuropsychological evaluations with detailed reports[3][16] UK – Adult Online £495 – £695 The ADHD Centre (£695), various clinics from £495[1][4] UK – Child Online £695 – £795 Child assessments often start higher than adults[1] Canada $279 – $1,000+ Maple ($279 for assessment step); psychologists often charge $1,000–$2,500[11] Australia $540 – $675 ADHD Therapy ($540 adults, $675 children)[14] Important Considerations Free Screenings: Some services like ADHD Advisor and Cerebral offer free initial self-tests to determine if a full assessment is necessary, though ongoing treatment starts at a monthly fee[6]. Insurance: If you have insurance, costs may drop to a copay of ~$30 per visit, whereas cash-only platforms charge the full $189+ upfront[13]. Diagnosis Validity: Quick online screenings ($150–$300) may not be accepted for school accommodations or disability services, whereas the $189 ADHD Online assessment is widely cited as a standard for a verified medical diagnosis accepted by physicians[3][6]. What’s Included: Higher-priced packages (up to $900 or £2,850) typically include clinical interviews, cognitive testing (e.g., QbCheck), and detailed written reports, while basic assessments may only include a questionnaire[2][6].
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