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Waterloo Handedness Questionnaire: Cross-Cultural Adaptation and Psychometric Properties of the Arabic Version
1Department of Physical Therapy, College of Medical Rehabilitation, Qassim University, Saudi Arabia.
Occupational Therapy International
|October 28, 2022
Summary
The Arabic Waterloo Handedness Questionnaire (WHQ-Ar) is a valid and reliable tool for assessing handedness in Arabic speakers. This cross-cultural adaptation ensures accurate measurement of cerebral lateralization across diverse populations.
Area of Science:
- Neuropsychology
- Motor Behavior Research
- Psychometrics
Background:
- Handedness is a key predictor of cerebral lateralization, crucial for neuropsychological and motor behavior research.
- Availability of multilingual assessment tools is vital for cross-cultural research on handedness.
Purpose of the Study:
- To translate and culturally adapt the Waterloo Handedness Questionnaire (WHQ) into Arabic (WHQ-Ar).
- To evaluate the psychometric properties of the WHQ-Ar for use in Arabic-speaking populations.
Main Methods:
- Translation and back-translation process involving native speakers and bilingual translators.
- Expert committee review for cultural adaptation.
- Psychometric evaluation including factor analysis, internal consistency (Cronbach's alpha), and test-retest reliability (ICC) on 290 adult Arabic speakers.
Main Results:
- The WHQ-Ar demonstrated no floor or ceiling effects.
- Factor analysis confirmed a two-dimensional structure for the WHQ-Ar.
- Excellent internal consistency (Cronbach's alpha = 0.93) and high test-retest reliability (ICC = 0.94) were observed.
- Bland-Altman analysis indicated acceptable agreement between test and retest scores.
Conclusions:
- The WHQ-Ar is a psychometrically sound instrument for assessing handedness.
- The WHQ-Ar is validated and reliable for use within the Arabic-speaking population.
- This tool facilitates cross-cultural research on handedness and cerebral lateralization.
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