Refers to both paper CRFs and electronic CRFs (eCRFs) unless otherwise specified.
2
Fields
Refers to where data is collected in a CRF.
3
Variable
Refers to where data is stored in a an electronic data capture (EDC) system.
4
Mechanisms for data collection
Refers collectively to different approaches used to control how data are collected including tick boxes, checkboxes, radio buttons, and drop-down lists.