WHODAS 2.0 Quiz & Flashcards: Scoring Insights

Questions and Answers

What are the six domains assessed by the WHODAS 2.0?

Understanding, getting around, self-care, social participation, financial management, work activities

Understanding and communicating, getting around, self-care, getting along with people, life activities, participation in society (correct)

Cognitive function, motor skills, self-care, work activities, leisure activities, social support

Emotional stability, communication skills, mobility, social interactions, life skills, personal management

What is the maximum total raw score possible when using the simple scoring method for WHODAS 2.0?

200

180 (correct)

120

150

In what situation can a proxy-administered version of WHODAS 2.0 be used?

When the individual has no prior health assessments

When the individual has impaired capacity and cannot complete the form (correct)

When the individual is under 18 years old

When the individual prefers not to answer questions

What does each item on the WHODAS 2.0 ask the individual to do?

Rate the difficulty experienced in specific areas of functioning Signup and view all the answers

What is the main advantage of the simple scoring method for WHODAS 2.0?

It is practical for hand-scoring and quick clinical settings. Signup and view all the answers

How many items are included in the WHODAS 2.0?

36 Signup and view all the answers

Which of the following accurately describes the scoring of individual items in the WHODAS 2.0?

Scores are assigned from 1 to 5 based on the level of difficulty. Signup and view all the answers

When is the use of WHODAS 2.0 particularly beneficial?

To measure disability in adults across various cultures Signup and view all the answers

What is the final score range after converting the summary score in IRT-based scoring?

0 to 100 Signup and view all the answers

Which step involves converting item responses to a rate of 0-4?

Step 1 Signup and view all the answers

How many domains does WHODAS 2.0 assess?

Six Signup and view all the answers

Which domain is NOT assessed by WHODAS 2.0?

Communication Signup and view all the answers

What is the primary role of the computer program in IRT-based scoring?

To determine the summary score Signup and view all the answers

Which of the following domains is related to daily living activities?

Life activities Signup and view all the answers

What should a clinician do if they believe a self-reported score does not accurately reflect the individual's condition?

Adjust the score in the raw item score box based on their clinical assessment. Signup and view all the answers

How is the average domain score calculated?

By dividing the raw domain score by the number of items in that domain. Signup and view all the answers

What is indicated by an average disability score of 3 on the WHODAS 5-point scale?

Moderate disability. Signup and view all the answers

What action should be taken if an individual does not respond to 10 or more items on the WHODAS 2.0?

The assessment results cannot be calculated reliably. Signup and view all the answers

What is considered when calculating the average general disability score?

The sum of all individual item scores divided by the total number of items. Signup and view all the answers

Why are average scores deemed reliable and clinically useful according to DSM-5 Field Trials?

They are easy to use and have been verified across multiple clinical sites. Signup and view all the answers

What does the WHODAS 5-point scale allow the clinician to assess?

The individual's level of disability. Signup and view all the answers

In the context of WHODAS 2.0, what is encouraged for the individual?

To answer all items on the measure comprehensively. Signup and view all the answers

What may consistently high scores in a particular domain indicate?

Areas that require further assessment and intervention Signup and view all the answers

At what intervals should the measure be completed for tracking disability changes?

Regular intervals as clinically indicated Signup and view all the answers

What should be considered regarding the individual's symptoms when completing the measure?

The stability of symptoms and treatment status Signup and view all the answers

Why might the simple or average domain scores not be helpful?

When 10 or more items are missing from the measure Signup and view all the answers

What should clinicians do if they notice consistently high scores for an individual?

Consider further assessment and intervention Signup and view all the answers

Study Notes

World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0)

The adult self-administered version of WHODAS 2.0 is a 36-item measure that assesses disability in adults aged 18 years and older.
It has been validated across numerous cultures worldwide and demonstrated sensitivity to change.
WHODAS 2.0 assesses disability across six domains:
- Understanding and communicating
- Getting around
- Self-care
- Getting along with people
- Life activities (household, work, and/or school activities)
- Participation in society
If the adult individual is of impaired capacity, a knowledgeable informant may complete the proxy-administered version of the measure.

WHODAS 2.0 Scoring Instructions

Each item on the self-administered version asks the individual to rate how much difficulty they have had in specific areas of functioning during the past 30 days.
There are two basic options for computing the summary scores for the WHODAS 2.0 36-item full version.
The simple scoring method sums the scores from each item without recoding or collapsing of response categories.
The scores assigned to each item are: "none" (1), "mild" (2), "moderate" (3), "severe" (4), and "extreme" (5).
The maximum total raw score is 180.
The simple scoring method is practical for hand-scoring and may be preferred in busy clinical settings or paper-and-pencil interview situations.

Complex Scoring Method

Item-response-theory (IRT)-based scoring is a complex method of scoring that considers multiple levels of difficulty for each WHODAS 2.0 item.
IRT-based scoring takes into account the coding for each item response as "none," "mild," "moderate," "severe," and "extreme" separately.
A computer program is required to determine the summary score by differentially weighting the items and the levels of severity.

Scoring Steps

Step 1: Recoded item scores are summed within each domain, converting response options 1-5 to a rate of 0-4, resulting in a total raw score of 144.
Step 2: All six domain scores are summed.
Step 3: The summary score is converted into a metric ranging from 0 to 100, where 0 = no disability and 100 = full disability.

WHODAS 2.0 Domain Scores

WHODAS 2.0 produces domain-specific scores for six functioning domains:
- Cognition
- Mobility
- Self-care
- Getting along
- Life activities (household and work/school)
- Participation

WHODAS 2.0 Population Norms

Population norms for IRT-based scoring of the WHODAS 2.0 and population distribution of IRT-based scores for WHODAS 2.0 can be found at www.who.int/classifications/icf/Pop_norms_distrib_IRT_scores.pdf.

DSM-5-TR Scoring and Interpretation Guidance

Clinicians review individual's responses during the clinical interview and record self-reported scores in the "Clinician Use Only" section.
Clinicians can override self-reported scores with corrected scores based on clinical interview and other available information.
Average domain and general disability scores are recommended for calculation and use.
Average scores are comparable to the WHODAS 5-point scale, ranging from none (1) to extreme (5).
Average scores were found to be reliable, easy to use, and clinically useful in the DSM-5 Field Trials.

Calculating Average Scores

Average domain score is calculated by dividing the raw domain score by the number of items in the domain.
Example: If all items in the "understanding and communicating" domain are rated as moderate, the average domain score would be 18/6=3, indicating moderate disability.
Average general disability score is calculated by dividing the raw overall score by the number of items in the measure (36).

Administering the WHODAS 2.0

Individuals should be encouraged to complete all items on the WHODAS 2.0.
If 10 or more items are left blank, the measure is considered invalid.

Frequency of Use

The measure should be completed at regular intervals to track changes in an individual's level of disability over time.
The frequency of completion depends on the stability of the individual's symptoms and treatment status, as clinically indicated.
Consistently high scores on a particular domain may signal:
Significant and problematic areas for the individual
Need for further assessment and intervention

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Description

Assesses disability in adults across 6 domains, including understanding, movement, self-care, and more. Validated across cultures and sensitive to change.

WHODAS 2.0: World Health Organization Disability Assessment