Attention-Deficit/Hyperactivity Disorder Test (ADHD-I)

The Attention-Deficit/Hyperactivity Disorder Inventory (ADHD-I) assesses traits associated with ADHD in adults, adapted from frameworks used in ADHD research, including the work of Dr. Russell Barkley, Dr. Thomas Brown, and diagnostic criteria from the DSM-5. This test is designed to explore self-reported ADHD traits in non-clinical populations, inspired by tools like the Adult ADHD Self-Report Scale (ASRS) and Brown Attention-Deficit Disorder Scales, but aims to comprehensively index ADHD traits without assuming a direct link to clinical diagnosis. It focuses on cognitive, behavioral, and emotional patterns associated with ADHD.

How do you score on the ADHD Inventory? For each statement, indicate your level of agreement.

Question 1 of 40

I jump between ideas quickly in conversations.

Disagree

Agree

The ADHD-I was developed by IDRlabs, inspired by ADHD research, including the work of Dr. Russell Barkley, Dr. Thomas Brown, and DSM-5 criteria. The ADHD-I is not associated with specific researchers or institutions.

Inattention: Individuals high in this trait struggle with sustaining attention, organizing tasks, or following through on instructions. They may be easily distracted or forgetful, reflecting core DSM-5 criteria for ADHD (APA, 2013).

Hyperactivity-Impulsivity: People with high scores exhibit restless behavior, difficulty waiting, or impulsive decision-making. This aligns with DSM-5 criteria and research on motor inhibition deficits in ADHD (Barkley, 1997).

Emotional Dysregulation: Individuals high in this trait experience intense emotions or difficulty managing frustration, often linked to prefrontal cortex dysfunction in ADHD (Shaw et al., 2014).

Executive Function Challenges: People with this trait struggle with planning, prioritizing, or self-monitoring, reflecting deficits in executive functioning common in ADHD (Brown, 2013).

Time Management Difficulties: Individuals high in this trait have trouble estimating time or meeting deadlines, often described as “time blindness” in ADHD literature (Barkley, 2012).

Hyperfocus: People with high hyperfocus engage intensely in tasks of interest, sometimes to the exclusion of other responsibilities, a phenomenon noted in ADHD (Hupfeld et al., 2019).

Motivational Difficulties: Individuals high in this trait struggle with initiating tasks or sustaining effort without immediate rewards, tied to dopamine dysregulation in ADHD (Volkow et al., 2011).

Cognitive Restlessness: People with this trait experience racing thoughts or mental restlessness, often reported in adult ADHD (Weyandt et al., 2017).

This free online ADHD-I screens for ADHD traits. We have striven for reliability and validity through statistical controls, but this test does not provide professional assessments. Consult our Terms of Service for details.

Why Use This Test?

1. Free: Delivered free, providing scores on Inattention, Hyperactivity-Impulsivity, Emotional Dysregulation, Executive Function Challenges, Time Management Difficulties, Hyperfocus, Motivational Difficulties, and Cognitive Restlessness.

2. Clinically Oriented: Feedback is based on Ph.D.-level research, offering a clear picture of ADHD traits via standardized items.

3. Statistical Controls: Ensures accuracy and validity of scores.

4. Made by Professionals: Developed with input from psychology and individual differences experts.