Five Digits Test: a quick inhibition test for adults with ADHD or autism

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a cross-sectional validation comparing the Five Digits Test (FDT) to the standard Color-Word Interference Test (CWIT) and the BRIEF-A questionnaire in adults with diagnosed or suspected ADHD or autism and healthy controls. Participants complete demographic and health questions, then are randomly assigned to take the FDT or CWIT first to control for order and learning effects. Researchers will use correlation coefficients to examine convergent validity and perform regressions and group comparisons (t-tests/ANCOVAs) to adjust for background variables and test differences. The protocol excludes people with active substance addiction, insufficient Swedish language to consent, current sedative use, or inability to complete neuropsychological testing.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* age 18 and above
* Diagnosed with a ADHD or Autism, alternatively under examination these diagnoses

Exclusion Criteria:

* Addiction of alcohol or other substances
* Not speaker of Swedish to such extent that cannot read or comprehend the informed consent forms
* On sedatives, such as sleep or pain medication
* Not being able to participate in a neuropsychological examination, or to give informed consent

Where it's running

• Umeå University, Umeå University Hospital
  Umeå, Sweden Recruiting

Study contacts

• Study coordinator: Nils Berginström, PhD
• Email: nils.berginstrom@umu.se
• Phone: +46907868864

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.