WOrk-Related Questionnaire for UPper extremity disorders (WORQ-UP): Factor Analysis and Internal Consistency

Publication date: September 2018

Source: Archives of Physical Medicine and Rehabilitation, Volume 99, Issue 9

Author(s): Bas R. Aerts, P. Paul Kuijer, Annechien Beumer, Denise Eygendaal, Monique H. Frings-Dresen

Abstract

Objective

To test a 17-item questionnaire, the WOrk-Related Questionnaire for UPper extremity disorders (WORQ-UP), for dimensionality of the items (factor analysis) and internal consistency.

Design

Cross-sectional study.

Setting

Outpatient clinic.

Participants

A consecutive sample of patients (N=150) consisting of all new referral patients (either from a general physician or other hospital) who visited the orthopedic outpatient clinic because of an upper extremity musculoskeletal disorder.

Interventions

Not applicable.

Main Outcome Measures

Number and dimensionality of the factors in the WORQ-UP.Results: Four factors with eigenvalues (EVs) >1.0 were found. The factors were named exertion, dexterity, tools & equipment, and mobility. The EVs of the factors were, respectively, 5.78, 2.38, 1.81, and 1.24. The factors together explained 65.9% of the variance. The Cronbach alpha values for these factors were, respectively, .88, .74, .87, and .66.

Conclusions

The 17 items of the WORQ-UP resemble 4 factors—exertion, dexterity, tools & equipment, and mobility—with a good internal consistency.

from Rehabilitation via xlomafota13 on Inoreader https://ift.tt/2MU73ux
via IFTTT