Does the Format of the Adult ADHD Self-Report Scale Impact the Results

April 8, 2026 updated by: University of Alberta

Does the Format of the Adult ADHD Self-Report Scale Impact the Results: a Randomized Controlled Trial

The World Health Organization Adult ADHD Self-Report Scale v1.1 (ASRS) is frequently used in family medicine clinics to screen for ADHD. Numerous studies have found the ASRS has a low positive predictive value. Compounding this concern is the format of the ASRS. Specifically, the answers on the ASRS that lead to screen positive results are shaded in gray and grouped together, which may make it easy for patients to discern which responses should be selected for a positive screen.

Study Overview

Detailed Description

The ASRS is used widely to screen for ADHD in adults. It has 18 questions, with response options "never," "rarely," "sometimes," "often," and "very often." The 6 questions considered most predictive of ADHD are grouped together in Part A and questions that are meant to provide additional cues are grouped together in Part B. The options that are considered a positive response vary between questions; for some questions the option is at least "sometimes," while for others it is at least "often." The positive response options are shaded on the ASRS. A person is considered to have a positive screen if 4 of the 6 questions in Part A are positive.

The objective of this trial is to determine if the shading and grouping on the ASRS impacts screening results. This trial has a 2x2 factorial design set in a family medicine clinic(s). When a patients check in for an appointment, clinic staff will offer them a survey that includes 1) demographic questions and 2) 1 of the 4 versions of the ASRS, the version they receive is randomized (with programming). Most patients will take approximately 5 minutes to complete the survey prior to them seeing the family physician.

Study Type

Interventional

Enrollment (Actual)

587

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Alberta
      • Edmonton, Alberta, Canada
        • Shifa Medical Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 19 - 65 years old
  • Patients who are registering for their appointment at the family medicine clinic
  • Patients who are expected to be in the reception area for ≥5 minutes before going to a clinic room

Exclusion Criteria:

  • Any patients who do not have the capacity to complete the form (e.g., cognitive impairment, unable to read English, unable to use a computer)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Screening
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: ASRS without shading and with grouping
These participants will receive the ASRS form that does not have shading for the screen positive response options and has the questions grouped (ie, the headings "Part A" and "Part B" will remain on the form).
Participants will be asked to complete the ASRS form without shading and with grouping.
Experimental: ASRS with shading and without grouping
These participants will receive the ASRS form that has the screen positive response options shaded and has the questions ungrouped (ie, the headings "Part A" and "Part B" are removed).
Participants will be asked to complete the ASRS form with shading and without grouping.
Experimental: ASRS without shading and without grouping
These participants will receive the ASRS form that does not have shading for the screen positive response options and has the questions ungrouped (ie, the headings "Part A" and "Part B" are removed).
Participants will be asked to complete the ASRS form without shading and without grouping.
No Intervention: Standard ASRS: with shading and with grouping
These participants will receive the standard ASRS form. This form has the positive response options for each question shaded and has the questions grouped (ie, the headings "Part A" and "Part B" will remain on the form).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Screen positive rate
Time Frame: Through study completion, estimated to be 2 months
Poisson regression to determine the relative risk of a screen positive among the different versions of the form. We will include the following covariates: shading, grouping, shading x grouping, suspect ADHD without diagnosis, ADHD diagnosis, sex, and age.
Through study completion, estimated to be 2 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Roni Kraut, University of Alberta

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 29, 2024

Primary Completion (Actual)

October 31, 2024

Study Completion (Actual)

October 31, 2024

Study Registration Dates

First Submitted

July 26, 2024

First Submitted That Met QC Criteria

July 30, 2024

First Posted (Actual)

July 31, 2024

Study Record Updates

Last Update Posted (Actual)

April 13, 2026

Last Update Submitted That Met QC Criteria

April 8, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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