Adult ADHD Self-Report Scale (ASRS v1.1): Guide, Scoring & Clinical Use
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Adult ADHD affects an estimated 3-6% of the adult population, yet many adults remain undiagnosed in 2026 due to symptoms that manifest differently than in childhood. The Adult ADHD Self-Report Scale (ASRS v1.1) is an 18-item self-report questionnaire designed to assess ADHD symptoms in adults aged 18 and older. It was created by the World Health Organization in collaboration with Harvard Medical School, based on the WHO Composite International Diagnostic Interview.
The ASRS is based on the World Health Organization Composite International Diagnostic Interview and aligns with DSM-IV and DSM-5-TR criteria for ADHD. The wording is tailored to how symptoms appear in adults—difficulty concentrating at work, trouble wrapping up projects, and challenges in social situations. The scale is free to use, takes about 5 minutes to complete, and should always be interpreted by a qualified clinician rather than used as a stand-alone diagnosis.
What the ASRS v1.1 Measures in Adult ADHD
The adult self report scale measures both inattentive and hyperactive/impulsive dimensions of ADHD symptoms. The ASRS identifies three symptom subscales: Inattentiveness, Motor Hyperactivity/Impulsivity, and Verbal Hyperactivity/Impulsivity.
Symptom domains include:
Domain | Adult Examples |
Inattention | Problems remembering appointments, careless mistakes, difficulty finding things |
Hyperactivity impulsivity | Feeling compelled to move, difficulty waiting, interrupting others |
Motor symptoms | Difficulty unwinding, feeling restless when expected to remain seated |
Verbal impulsivity | Talking excessively, difficulty with turn taking in conversations |
The ASRS is designed to evaluate behaviors over the past six months, which helps distinguish persistent symptoms from occasional stress-related issues. Symptoms measured by the ASRS include difficulties with organization, concentration, memory, restlessness, and verbal/motor impulsivity. The self report format centers the adult’s own experience while still requiring collateral information and clinical judgment.
Structure of the Adult Self Report Scale: Part A and Part B
The ASRS v1.1 divides into Part A and Part B, each serving a distinct role in assessment.
Part A (Items 1-6):
Contains the most predictive items for adult ADHD diagnosis
Addresses core symptoms: trouble wrapping up final details once challenging parts are done, difficulty with task requires organization, avoiding a boring or difficult project
A cutoff score of 14+ (using updated Likert scoring) suggests symptoms highly consistent with ADHD
Part B (Items 7-18):
Expands the symptom picture with 12 additional questions
Explores severity, impairment, and patterns like feel overly active, difficulty keeping attention during repetitive work
Helps clinicians understand subtype presentations
Part A of the ASRS contains 6 items that are most predictive of ADHD diagnosis, while Part B includes 12 additional questions that provide further symptom severity information. Clinicians examine the pattern across both parts—high Part A with moderate Part B versus moderate Part A with very high Part B—to understand severity and guide interventions.
How the ASRS v1.1 Is Scored (Including the 2024 Update)
The ASRS v1.1 historically used dichotomous scoring, but was updated in 2024 to a 5-point Likert scale (0=never, 1=rarely, 2=sometimes, 3=often, 4=very often). This change provides more nuance for clinical interpretation.
Key scoring thresholds:
Measure | Threshold | Indication |
Part A | ≥14 | Screen-positive for ADHD |
Part B | ≥27 | Elevated symptom severity |
Total Score | ≥40 | 79th percentile, consistent with ADHD |
Using the ASRS Part A cutoff of 14+, the scale provides an optimal sensitivity of 90% and specificity of 88%, indicating it correctly identifies 9 out of 10 adults with ADHD. A total score at the 79th percentile or above (raw score ≥40) typically indicates ADHD, according to normative data from a study involving 22,397 adults.
Reliability and accuracy:
The ASRS demonstrates excellent diagnostic accuracy for adult ADHD, achieving an Area Under the Curve (AUC) of 0.904 in a validation study comparing clinically diagnosed ADHD adults with controls
The ASRS has high internal consistency with a Cronbach’s alpha of 0.952, confirming its reliability as a screening instrument
Clinical Interpretation: Using the Adult ADHD Self Report in Practice
The ASRS is a screening and monitoring tool, not a replacement for a DSM-based diagnostic interview. A high score on the ASRS suggests further evaluation by a healthcare professional, but it does not guarantee a diagnosis of ADHD.
Clinicians examine response patterns on the right side of the questionnaire to identify consistent “often” or “very often” responses. Part A and Part B scores are read together:
High Part A = strong likelihood of ADHD criteria shown
High Part B = highlights severity, impairment, or other situations requiring attention
Pattern analysis guides whether inattention or hyperactivity dominates
The ASRS aims to provide insight into ADHD symptoms in adults based on self-reporting. Subscales help tailor interventions—organizational coaching for inattention, medication for motor hyperactivity, or cognitive-behavioral therapy for impulsivity. Clinicians should also rule out anxiety, depression, substance use, or sleep disorders that may influence responses.
Validity Under DSM-IV and DSM-5-TR Criteria
Although developed for DSM IV criteria, research through Adler et al. 2018 and later confirms the ASRS remains valid for DSM-5-TR assessment.
Key DSM changes for adults:
Symptom threshold lowered from 6 to 5 per domain for adults
Age of onset raised from 7 to 12 years
Greater emphasis on functional impairment across settings
The core symptom criteria shown on the ASRS v1.1 remain consistent with DSM-5-TR, so items do not need rewriting. The main adaptation involves how clinicians interpret the total picture—onset, pervasiveness across settings, and functional impairment in work, relationships, and daily life.
How to Complete the ASRS v1.1 as an Adult
If you’re taking the report scale for the first time, here’s what to expect:
Find a quiet place free from distractions
Read each item carefully—consider the delay between reading and your answer
Base responses on the past 6 months, not just recent days
Select the option on the right side that best describes your actual experience
Answer honestly rather than how you wish to be
There are no “right or wrong” answers—only more or less accurate self-observations. Bring completed results to your healthcare provider, especially if Part A score is high or symptoms significantly affect work, social situations, or relationships.
Note that self report scales can both under- and over-estimate symptoms. Professional evaluation remains essential before starting or changing any treatment. The scale is a starting point for discussion, not a final answer.
Frequently Asked Questions
Can I diagnose myself with adult ADHD using the ASRS v1.1 alone?
No. The ASRS is a helpful screening tool, but diagnosis must be made by a qualified clinician using full DSM criteria, clinical history, and assessment of functional impairment. The ASRS is commonly used as a starting point for clinical evaluations.
How long does it take to complete the Adult ADHD Self-Report Scale?
Most adults finish in about 5 minutes, with Part A taking roughly 54 seconds on average. This makes it practical for primary care, telehealth, and research settings where patients have limited time.
Is the ASRS v1.1 accurate for women and older adults?
Validation samples included diverse age and gender groups. However, women and older adults may show more inattentive than hyperactive symptoms, which clinicians should factor into interpretation when looking at the response patterns.
Can the ASRS be used to track treatment progress over time?
Yes. Repeated administrations can show changes in symptom frequency and help guide medication or therapy adjustments. The Likert scoring system is particularly useful for detecting subtle improvements over time.
What should I do if my ASRS scores are high but my clinician dismisses my concerns?
Consider seeking a second opinion. Bring collateral information such as school records, work performance reviews, or input from family members. Advocate for a thorough assessment that addresses onset, pervasiveness, and functional impairment.
Conclusion
The Adult ADHD Self-Report Scale (ASRS v1.1) provides a validated, efficient method for screening attention deficit hyperactivity disorder symptoms in adults. Part A offers rapid case-finding with its 6 most predictive items, while Part B expands the clinical picture across 12 additional domains. The 2024 scoring update to a Likert system improves accuracy and enables better longitudinal monitoring.
High scores signal an opportunity to seek professional support—not a personal failing. Whether you’re an adult seeking answers or a clinician refining your assessment toolkit, the ASRS v1.1 offers a structured starting point for discussion, treatment planning, and ongoing symptom tracking. As research continues to refine our understanding of adult ADHD presentations, expect future updates to screening tools that capture even more nuanced symptom patterns.
