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Sunday, April 21, 2019

WHODAS: Assessing Disability


By: SOPHIA F. DZIEGIELEWSKI

In DSM-5, the multi-axial diagnostic system was eliminated as an option for diagnostic coding, and with this deletion was the expected recording of the individual level of functioning. The purpose of Axis V in the previous version of the DSM was to measure the behavioral functioning of an individual over the previous year.

To complete this task, the Generalized Assessment of Functioning (GAF) scale was designed to enable the practitioner to differentially rank identified behaviors from 1 to 100, with higher
ratings indicating higher overall functioning and coping levels. By rating the highest level of
functioning a client had attained over the past year and then comparing it to his or her current
level of functioning, this measure provided helpful, repeated comparisons of changes in functioning. The GAF was first introduced in DSMIV.

One major change between DSM-IV and DSM-IV-TR related to the supplemental use of this scale, providing more detailed instructions on how to apply the GAF. According to the DSM-5 task force, the major problem with the GAF that resulted in its being dropped was the lack of clarity in the numbered divisions and what each 10-digit interval actually stood for, leading to questionable psychometric properties (APA, 2013).

To replace the GAF, a global measure of disability, the WHO Disability Assessment Schedule (WHODAS, version 2.0), was adopted and included in Section III. The WHODAS is based
on the International Classification of Functioning, Disability and Cognitive Health (ICF) and
can be used with adults and, in a separate version, with caregivers. The adult version is a 36-item self-administered measure for those age 18 and older that assesses disability across six domains.

The first domain involves understanding and communicating and utilizes six questions
designed to measure the results of an individuals cognitive domain. Answers to these six questions can be rated from no disability to so extreme that at its most severe point cognitive functioning can prohibit performance.

The second area involves five questions related to how well the client can get around. This subsection follows a similar scoring format, and questions assess for problems with standing, moving, and walking inside and outside the home.

The third area is performance of self-care and how capable the client is with basic skills required for grooming, such as bathing and dressing, and the degree to which self-feeding is possible.

The fourth area involves getting along with people and how the person interacts with people in his or her support system, as well as how he or she makes new friends and interacts with people he or she does not know. There is also one question related to sexual activities.

The fifth area relates to basic life activities, including household tasks, school, and work, and gathers information related to the appropriate life situation.

The sixth area has eight questions on how the individual sees his or her role in society, along with any concerns or preoccupations with health.

What all six sections of the adult version of the WHODAS share is that they assess behaviors over the past 30 days and can be given as often as needed to examine changes in individual perceptions and functioning.

The hope is that the WHODAS will assist with measuring individual functioning and replace
the need for the GAF.Measuring the term clinically significant and how it relates to impairment in social and occupational functioning has always been difficult. The use of this measure is recommended, along with other possible assessment measures listed online (http://www.psychiatry.org/dsm5).

When these measures are combined with getting information from third parties such as family
members and others in the clients support system, the most comprehensive diagnostic assessment will be obtained.

References

SOPHIA F. DZIEGIELEWSK, 2015, DSM-5TM in Action, by John Wiley & Sons, Inc.

Read Also

Medication-Induced Movement Disorders and Other Adverse Effects of Medication
Factors Influencing Assessment
The Current Status of Health Measurement
Evaluating a Health Measurement: The User’s Perspective
Types of Health Measurements
Brief History of the DSM
The Person-in-Environment Classification System (PIE)
The official nomenclature used in mental health and other health-related facilities
The International Classification of Diseases (ICD)

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