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ASRS-v1.1 Adult ADHD Screener and Brain Fog

ASRS-v1.1 is a six-question adult ADHD screen. Save the score with examples of what you miss, delay, lose, avoid, interrupt, or cannot finish.

Common threshold Four or more positive Part A items is commonly treated as screen positive. Time frame Answer about your usual life during the past 6 months. Best use Save the score with impairment, childhood history, settings affected, and look-alikes.
01

When an ADHD screener may be useful

ADHD can feel like brain fog. You may know what to do but still leave a form unfinished, miss a bill or appointment, lose things, or wait for panic before starting. Save examples like these with your score so a clinician can see how the problem affects your life.

Daily-life impact

Tasks do not get finished

You may know what to do but still leave a form unfinished, miss a bill or visit, or wait until a deadline feels urgent before starting.

The screen

The six questions check common ADHD symptoms

Part A asks about your usual adult life during the past 6 months. The score can show whether a full ADHD assessment may help.

Life history

Your history gives the score meaning

Bring childhood signs, the places where problems happen, the help you need to stay organized, and other health or life changes that may cause similar symptoms.

What it cannot prove

ASRS-v1.1 is a screening tool, not a diagnosis. It cannot rule out ADHD or explain brain fog by itself. Sleep loss, anxiety, depression, trauma, substance use, medicine effects, thyroid disease, anemia, pain, migraine, and post-infection fatigue can cause similar problems.

Save this test

Save the score with real examples

Keep the score beside your daily examples. Bring both so the clinician can see what the number means in your life.

Save this screen once.

02

Who should use ASRS-v1.1, and what can affect the score?

ASRS-v1.1 is for adults. Age, hidden symptoms, school history, sleep, mood, trauma, substance use, and health problems can change what the score means.

Children and teenagers

Do not use adult ASRS-v1.1 for a child or teen. An ADHD assessment for young people often uses parent and teacher reports, school records, development history, and forms made for their age.

Adults 18 and older

For adults, ASRS-v1.1 can show whether a full assessment may help. Bring examples of daily problems, where they happen, other possible causes, and whether the symptoms began before age 12.

Women, girls, and masked presentations

Some people look organized because they plan every detail, avoid hard tasks, copy another person's system, or work for hours in private to catch up. Tell the clinician about this hidden work.

Older adults

ADHD can be found late in life. But new memory or attention trouble also needs checks for sleep, hearing, vision, medicines, mood, stroke risk, thyroid disease, low B12, anemia, pain, or dementia.

Pregnancy, postpartum, and hormones

Pregnancy, poor sleep after birth, breastfeeding, perimenopause, PMS or PMDD, migraine, thyroid disease, anemia, mood, and medicine changes can affect attention. Save when the change began.

Sleep, anxiety, depression, trauma, and substance use

These problems can look like ADHD, make ADHD worse, or happen with it. Check what's been lifelong, what changed recently, and what gets better when sleep, mood, trauma, substance use, pain, or medicines change.

03

How to prepare before taking ASRS-v1.1 to an appointment

Use ASRS-v1.1 only for adults. Children and teens need an assessment made for their age. It often uses reports from parents, teachers, and school records.

Answer about your usual behavior during the past 6 months. Do not base every answer on one crisis, deadline, sleepless week, or recent medicine change.

Save the score with real examples from work, school, home, money, driving, relationships, appointments, and chores.

Check whether the problems began before age 12 and happen in more than one place. Also note sleep, mood, trauma, substance use, medicines, pain, migraine, thyroid disease, anemia, or illness after an infection.

01

Use the 6-item Part A screener

The short ASRS-v1.1 screen uses the six Part A questions. Score it with the source instructions or a clinician's guide, not a number from a forum.

02

Count positives exactly

The CADDRA guide calls four or more positive Part A answers a positive screen.

03

Bring impairment, not just the score

List the ways the problem affects your life. Examples include missed visits, late bills, unfinished work, school or job trouble, driving mistakes, arguments, or hours spent trying to stay organized.

04

How do you read an ASRS-v1.1 score?

Check the score, then add examples from the past 6 months, childhood signs, places affected, and other problems that may explain the symptoms.

ASRS-v1.1 result

0 to 3 positive Part A items

This is below the usual positive-screen cutoff. ADHD may still be possible if attention and follow-through problems began in childhood and still harm daily life.

What it can mean

Low score with strong lifelong impairment, or positive score during acute sleep loss, anxiety, depression, pain, substance use, medication change, or crisis

The timing may have changed the score. Bring daily examples, childhood history, places affected, and notes about sleep, mood, pain, substances, or medicine changes.

4 or more positive Part A items

Ask about a full adult ADHD assessment. The assessment will check whether ADHD fits and whether another problem is causing or adding to the symptoms.

Ask for a full assessment

Four or more positive Part A answers support a full ADHD assessment. The assessment checks your history, daily problems, places affected, and other possible causes before a diagnosis.

See research details

The notes below explain the score, the studies behind it, and what a full assessment checks.

SourceWhat the screener is ContextAdult ASRS-v1.1 Part A

ASRS-v1.1 is an adult ADHD screen from the World Health Organization. Researchers chose six questions from the full 18-question form and compared the short screen with clinician ratings.

SourceCommon score threshold ContextPart A positives

The CADDRA scoring guide calls four or more positive Part A answers a positive screen. This result supports asking for a full assessment.

SourceValidation evidence ContextStudies in groups of adults

In adult studies, the six-question screen matched clinician ratings well enough to help find people who may need a full assessment.

SourceDSM-5 update exists ContextASRS-5 and ASRS-v1.1

The World Health Organization later made ASRS-5 for DSM-5. ASRS-v1.1 is older, so save which version you used.

SourceDiagnosis is clinical ContextWhat a full ADHD assessment checks

A full assessment checks your symptoms, daily problems, childhood history, places affected, and other possible causes. The screen is one part of that work.

SourceAge and sex context ContextAge, sex, and missed cases

A US study found that adult scores differed by age and sex. There are no separate cutoffs, but age and missed or hidden symptoms can change how a clinician reads the score.

SourcePositive screens need follow-up ContextHow the form and setting affect scores

Recent studies found that the form and setting can change how often people screen positive. A clinician should check a positive result with your full history.

05

What can you do before the assessment conversation?

While you wait for an assessment, save examples from daily life and try simple support for the problems you face now.

List what went wrong before you forget

List missed visits, late bills, unfinished forms, and piles moved from room to room. Add tasks you start but do not finish, lost keys, interrupting, losing track of time, or needing someone else to plan your day.

Try support you can use now

Try alarms, a visible checklist, one-task timers, written steps, fewer open tabs, working beside another person, and one place for keys and other basics. Notice which tools help you finish tasks.

Bring the look-alikes

List your sleep, snoring, shift work, mood, trauma symptoms, substance use, medicine changes, thyroid, B12, iron, anemia, pain, migraine, and recent infections. Mark which problems are lifelong and which are new.

When this needs urgent help

Get urgent help for suicidal thoughts or a risk of harming yourself or someone else. Psychosis, mania, severe substance withdrawal, chest pain, fainting, or a seizure also need urgent help. The same is true for sudden problems with the brain or nerves or a sudden severe change in thinking.

06

What should you save in My Fog?

Keep these together

  • ASRS-v1.1 version, Part A score, date, and 6-month context
  • Examples of impairment: missed deadlines, unpaid bills, unfinished forms, late arrivals, losing items, task avoidance, interrupting, or time blindness
  • Whether similar problems were present before age 12
  • Settings affected: work, school, home, money, driving, relationships, appointments, chores, or follow-through
  • Look-alikes: sleep, anxiety, depression, trauma, substance use, medications, thyroid, B12, iron, anemia, pain, migraine, or infection timing

Question for the visit

“Does my ASRS-v1.1 score and life history justify full adult ADHD assessment, and what sleep, mood, trauma, substance, medication, or medical causes should be checked too?”
07

Sources for ASRS-v1.1 Adult ADHD Screener

01
Ronald C. Kessler ASRS resources page

ASRS instrument history and access routing

02
NYU TOV ASRS-v1.1 licensing page

ASRS-v1.1 18-item adult questionnaire identity and licensing context

03
CADDRA ASRS scoring guide

Part A screening use and scoring instructions

04
NICE ADHD guideline NG87

Recognition, diagnosis, and management of ADHD in children, young people, and adults

05
NICE ADHD guideline via NCBI Bookshelf

Adult ADHD diagnosis and management context

06
VA adult ADHD quick reference guide

Adult clinical assessment, DSM-5-TR criteria, lifespan history, and differential context

07
CDC ADHD diagnosis page

Child and adolescent ADHD diagnostic process context

08
Kessler et al., Psychological Medicine, 2005, PMID 15841682

WHO ASRS-v1.1 development and short screener performance

09
Kessler et al., International Journal of Methods in Psychiatric Research, 2007, PMID 17623385

ASRS screener validity in health-plan sample

10
Ustun et al., JAMA Psychiatry, 2017, PMID 28384801

WHO adult ADHD DSM-5 self-report screening scale

11
Adler et al., International Journal of Clinical Practice, 2019, PMID 30239073

US ASRS-v1.1 norms and age or sex context

12
Adler et al., ASRS-v1.1 US norms full text

Open-access adult ASRS-v1.1 normative data

13
Adult ASRS format and screen-positive rate study, 2025

Format and false-positive context for adult ADHD screening

14
Frontiers in Psychiatry ASRS format study, 2025

ASRS screen-positive rate and format-effect context

See each claim's sources

interpretation

Common ASRS-v1.1 scoring treats 4 or more positive Part A items as screen positive, which suggests clinical follow-up rather than diagnosis.