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Do I Have ADHD? – Take a Free Screening Test

Adhddiagnos offers a free, science-based ADHD screening test in English. Take the WHO ASRS and get immediate feedback to help you understand your next steps.

Understanding ADHD in Adults

ADHD (Attention Deficit Hyperactivity Disorder) is a neurodevelopmental condition affecting approximately 5–7% of adults worldwide. It is characterised by persistent patterns of inattention, hyperactivity, and impulsivity that interfere significantly with daily functioning. Many adults live for years without a diagnosis, attributing their struggles to laziness, poor character, or anxiety.

The WHO Adult ADHD Self-Report Scale (ASRS v1.1) is the gold-standard screening tool recommended by the World Health Organization. Adhddiagnos offers this test free of charge, with immediate interpretation in plain language. A positive result does not confirm a diagnosis but strongly suggests further clinical evaluation is worthwhile.

Common Signs of ADHD in Adults

Adult ADHD often presents differently than childhood ADHD. Hyperactivity becomes an inner restlessness rather than physical running around. The most common challenges include: chronic procrastination, difficulty starting and finishing tasks, poor time management (often called "time blindness"), impulsive decisions, emotional dysregulation, and difficulty maintaining focus in low-stimulation environments.

Many adults with ADHD also experience hyperfocus – the paradoxical ability to become intensely absorbed in highly stimulating or interesting activities for hours. This can mask the underlying attention regulation difficulty and confuse both individuals and clinicians.

What to Do After Taking the Test

If your ASRS screening indicates elevated ADHD symptoms, the recommended next step is to consult your primary care physician (GP) and request a referral to a psychiatrist or neuropsychiatric assessment unit. In Sweden (where Adhddiagnos is based), this referral is handled through the regional healthcare system. In other countries, pathways vary.

Bring your screening results to the appointment as a discussion aid. Describe specific situations where the symptoms have impaired your functioning – at work, in relationships, or managing daily responsibilities. The more concrete your examples, the more useful information your clinician has to work with.

Vanliga frågor

Is Adhddiagnos's test the same as a clinical ADHD test?

Adhddiagnos uses the validated ASRS v1.1 instrument, which is the same questionnaire used by clinicians as a screening tool. However, a clinical diagnosis requires a full evaluation by a licensed psychologist and psychiatrist, which includes structured interviews, cognitive testing, and collateral information.

Can adults develop ADHD later in life?

According to diagnostic criteria (DSM-5), ADHD symptoms must have been present before age 12. Adults who receive a late diagnosis typically had unrecognized childhood symptoms. True new-onset ADHD in adulthood is not currently recognised as a separate entity.

Is ADHD more common in men or women?

Historically, ADHD has been diagnosed more frequently in males. However, emerging research suggests similar prevalence across genders, with females being underdiagnosed due to different symptom presentation and superior masking ability.

What treatments are available for adults with ADHD?

Evidence-based treatments include stimulant medications (methylphenidate, amphetamine salts), non-stimulant medications (atomoxetine), ADHD-focused CBT, coaching, and psychoeducation. A combination of medication and behavioral strategies typically yields the best outcomes.