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OpenTrials
Completed

NCT Number: NCT00885807

A Prospective Chart Review to Validate the WFIRS (Weiss Functional Impairment Rating Scale)

The purpose of the study is to evaluate the psychometric validation of the Weiss Functional Impairment Rating Scale and the Weiss Symptom Record. It is hypothesized that the Weiss Functional Impairment Rating Scale has strong psychometric properties and good convergent validity with other measures of functioning and discriminant validity from symptoms and quality of life.

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Key information

Age range

7 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Provincial ADHD Program, BC Children's & Women's Health Centre

Vancouver, British Columbia, Canada

About this study

The measures for this rating scale were developed at the request of the Canadian Attention Deficit Disorder Resource Alliance to provide clinician friendly tools free of charge as a way of improving screening for ADHD and comorbidity.

Patients are consented during clinic visits and agree to allow use of clinic data for the purpose of this research. They complete additional measure(s) for the purpose of the study. The data is then entered.

Internal consistency will be measured using Cronbach's alpha. Convergent, concurrent and discriminant validity will be measured using Pearson correlations. Domain reliability is determined with factor analysis. Up to 220 patients will be enrolled in the study.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Compliance to complete the WFIRS is key to inclusion.

Sponsors and collaborators

Lead sponsor

University of British Columbia

Other

Collaborators

  • Eli Lilly and Company
  • Purdue Pharma LP
  • Shire

Registry information

Official study title

Psychometric Validation of the Weiss Functional Impairment Rating Scale and the Weiss Symptom Record in Patients With Attention-Deficit Hyperactivity Disorder

Important dates

Study start
2006
Primary completion
2011
Study completion
2011
First posted
Apr 22, 2009
Registry last updated
Jun 20, 2011

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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