A within-subjects trial to test the equivalence of online and paper outcome measures: the Roland Morris Disability Questionnaire
<p>Abstract</p> <p>Background</p> <p>Augmenting validated paper versions of existing outcome measures with an equivalent online version may offer substantial research advantages (cost, rapidity and reliability). However, equivalence of online and paper questionnaires ca...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
BMC
2010-06-01
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| Series: | BMC Musculoskeletal Disorders |
| Online Access: | http://www.biomedcentral.com/1471-2474/11/113 |