Despite extensive use over 40 years, physical activity questionnaires still show limited reliability and validity. Measurements have value in indicating conditions where an increase in physical ...
Background: Self-report questionnaires play an important role as outcome measures in shoulder research. Having an estimate of the measurement error of these ...
The field of marketing uses many statistically different methods for assessing discriminant validity. However, the discipline lacks an underlying standard as to which method(s) provides the most ...
Objective Self-reports of physical activity (PA) have been the mainstay of measurement in most non-communicable disease ... to examine aspects of the generalisability, reliability, validity, ...
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