BRG IDATA Analyses
Principal Investigator
Name
Kevin Dodd
Degrees
PhD
Institution
National Cancer Institute, National Institutes of Health
Position Title
Mathematical Statistician
Email
About this CDAS Project
Study
IDATA
(Learn more about this study)
Project ID
IDATA-53
Initial CDAS Request Approval
Mar 17, 2022
Title
BRG IDATA Analyses
Summary
This project will investigate multiple facets of the measurement error structure of the self-report and device-based diet and physical activity measures in IDATA relative to each other and to gold-standard biomarker measurements.
Aims
* Model-based estimates of Attenuation factors/Correlation with truth for self-report and device-based measures
* Evaluation of complete measurement error structure for self-report and device-based measures
* Sensitivity analyses for analytical methods that use self-report or device based measures in lieu of truth
* Comparison of intake/physical activity distributions based on the various measures
* Use of IDATA results as external/supplemental information in measurement error modeling of other data sources
Collaborators
Victor Kipnis - NCI/DCP/BRG
Doug Midthune - NCI/DCP/BRG
Sharon Kirkpatrick - U Waterloo (Canada)