Clickable project menu items are shown on the right side of the screen in Fig. 2. All menu items in the Data Entry tab point to CRFs specific to the scientific project, while the Applications tab contains menu items pointing to general REDCap functions. Researchers use the “Data Export Tool” to push collected data out of the REDCap system for external analysis and may select entire forms and/or individual fields for export. The module returns downloadable raw data files (comma-delimited format) along with syntax script files used to automatically import data and all context information (data labels, coded variable information) into common statistical packages (SPSS, R/S+, SAS, Stata). The “Data Import Tool” module allows bulk upload of data from existing files with automatic validation of data and audit trail creation similar to those created when using CRF data entry methods. The “Data Comparison Tool” module provides a mechanism to view and reconcile data for those studies employing double-data entry or blinded-data entry methods. The “Data Logging” module provides users a view of all data transactions for the duration of the
