Inter-observer variation can be measured in any situation in which two or more independent observers are evaluating the same thing Kappa is intended to. - ppt download
Comparison of the Physical Activity and Sedentary Behaviour Assessment Questionnaire and the Short-Form International Physical Activity Questionnaire: An Analysis of Health Survey for England Data | PLOS ONE
Level of agreement between patient-reported EQ-5D responses and EQ-5D responses mapped from the SF-12 in an injury population – topic of research paper in Health sciences. Download scholarly article PDF and read
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Occupational Requirements Survey: results from a job observation pilot test : Monthly Labor Review: U.S. Bureau of Labor Statistics