Predicting Objective Physical Activity from Self-Report Surveys: A Model Validation Study Using Estimated Generalized Least-Squares Regression
Physical activity measurements derived from self-report surveys are prone to measurement errors. Monitoring devices like accelerometers offer more objective measurements of physical activity, but are impractical for use in large-scale surveys. A model capable of predicting objective measurements of physical activity from self-reports would offer a practical alternative to obtaining measurements directly from monitoring devices.
| Year of publication: |
2014-11-19
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| Authors: | Beyler, Nicholas ; Fuller, Wayne ; Nusser, Sarah ; Welk, Gregory |
| Institutions: | Mathematica Policy Research |
| Subject: | estimated generalized least squares | NHANES | physical activity | accelerometry | validation study |
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