Table of Contents
World Health Organization Disability Assessment Schedule
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About Scale Name
Scale Name
World Health Organization Disability Assessment Schedule
Author Details
World Health Organization (WHO)
Translation Availability
Arabic, Chinese, French, Russian, Spanish, and many others
Background/Description
The World Health Organization Disability Assessment Schedule (WHODAS) is a tool developed by the World Health Organization (WHO) to assess disability and health in populations. It was designed to measure the impact of disability on a person’s ability to function in different areas of life, including cognition, mobility, self-care, getting along with others, life activities, and participation in society.
The WHODAS has been widely adopted and is used in research, clinical practice, and public health settings to better understand the prevalence and impact of disability on individuals and populations. The tool has undergone multiple revisions to reflect advances in disability measurement and research, and it is available in different versions and languages to accommodate the needs of different users and settings. The WHO continues to promote the use of the WHODAS and provides training and support for its implementation around the world.
Administration, Scoring and Interpretation
The administration and scoring of the World Health Organization Disability Assessment Schedule (WHODAS) involves a standardized process to ensure consistent and reliable measurement of disability across different populations and settings. The WHODAS is typically administered through a self-report questionnaire or an interview, and the responses are used to calculate a score for each of the six domains of functioning. The scoring system varies depending on the version of the WHODAS used, but typically involves a scale from 0 to 100, where higher scores indicate greater disability.
The administration and scoring of the WHODAS requires careful attention to the cultural and linguistic context of the population being assessed. The tool has been translated into many different languages, and cultural adaptations have been made to ensure that it is appropriate and relevant for diverse populations. The WHO provides guidelines and training for the administration and scoring of the WHODAS, and it is recommended that users of the tool receive adequate training to ensure accurate and consistent results. Overall, the administration and scoring of the WHODAS is a critical step in understanding the impact of disability on individuals and populations and can inform the development of interventions and policies to improve health and functioning.
Reliability and Validity
The World Health Organization Disability Assessment Schedule (WHODAS) has undergone extensive testing to establish its reliability and validity as a measure of disability and health. Reliability refers to the consistency and stability of the WHODAS scores over time and across different raters, while validity refers to the degree to which the WHODAS accurately measures what it is intended to measure.
Studies have shown that the WHODAS has good to excellent reliability, with high test-retest reliability and inter-rater reliability. The tool has also demonstrated good convergent validity, meaning it is consistent with other measures of disability and health. The WHODAS has been found to be sensitive to changes in functioning over time, making it a useful tool for evaluating the effectiveness of interventions.
The WHODAS has also undergone cross-cultural validation to ensure its validity across different languages and cultures. The WHO has developed guidelines for the cultural adaptation of the WHODAS to ensure that it is culturally appropriate and relevant for diverse populations.
Available Versions
36-Items
Reference
World Health Organization. (2010). World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0). Geneva, Switzerland: World Health Organization.
Important Link
Scale File:
Frequently Asked Questions
What is the WHODAS?
The WHODAS is a tool developed by the World Health Organization (WHO) to assess functioning and disability across six domains: cognition, mobility, self-care, getting along with others, life activities, and participation in society.
Who can use the WHODAS?
The WHODAS can be used by researchers, clinicians, and public health practitioners to assess disability and health in populations. It can also be used by individuals to self-assess their own functioning.
What versions of the WHODAS are available?
The WHODAS is available in several versions, including the WHODAS 2.0, WHODAS 2.0-S (short version), and WHODAS-Child. The different versions vary in length and content.
How is the WHODAS administered and scored?
The WHODAS is typically administered through a self-report questionnaire or an interview, and the responses are used to calculate a score for each of the six domains of functioning. The scoring system varies depending on the version of the WHODAS used, but typically involves a scale from 0 to 100.
Is the WHODAS reliable and valid?
Yes, studies have shown that the WHODAS has good to excellent reliability and validity as a measure of disability and health. It has also undergone cross-cultural validation to ensure its validity across different languages and cultures.
What is the purpose of the WHODAS?
The purpose of the WHODAS is to provide a standardized tool for assessing functioning and disability across different populations and settings. The information obtained from the WHODAS can be used to inform the development of interventions and policies to improve health and functioning.
Is the WHODAS available in languages other than English?
Yes, the WHODAS has been translated into many different languages and cultural adaptations have been made to ensure its relevance and appropriateness across diverse populations.
Can the WHODAS be used to assess disability in specific health conditions?
Yes, the WHODAS can be used to assess disability in a variety of health conditions, including mental health disorders, neurological disorders, and chronic diseases.
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