Modified WHODAS-II provides valid measure of global disability but filter items increased skewness

International Literature Review on WHODAS II (World Health Organization Disability Assessment Schedule II)

This review is a critical analysis regarding the study and utilization of the World Health Organization Disability Assessment Schedule II (WHODAS II) as a basis for establishing specific criteria for evaluating relevant international scientific literature. The WHODAS II is an instrument developed by the World Health Organisation in order to assess behavioural limitations and restrictions relate...

An Improved Skewness Measure

Skewness is an important property of a population. Although many measures have been proposed there is no consensus on what should be used in practice. We propose a new measure which is appropriate when the direction of the skewness is known a priori. It is simple to interpret and easy to estimate.

A general measure of skewness

assessment of disability with whodas ii – 12 item in trauma patients

results the average age of patients was 34.1 ± 14.6 year. in total 86.4% of the participants were male, 78.6% lived in urban areas, 87.1% were iranian, and 58.6% were employed. a total of 62.1% of trauma patient injuries were traffic related injuries and most of them (75%) were motor cycle accidents. a total of 79.3% of patients had injuries in the extremities with other injuries as follows: he...

Item response theory-based measure of global disability in multiple sclerosis derived from the Performance Scales and related items

BACKGROUND The eight Performance Scales and three assimilated scales (PS) used in North American Research Committee on Multiple Sclerosis (NARCOMS) registry surveys cover a broad range of neurologic domains commonly affected by multiple sclerosis (mobility, hand function, vision, fatigue, cognition, bladder/bowel, sensory, spasticity, pain, depression, and tremor/coordination). Each scale consi...