TABLE 2.
Equipment and human resources needed to carry out the different stages of food labeling and advertising data collection, data management, and data entry1
| Human resources | Equipment needed | |||||||
|---|---|---|---|---|---|---|---|---|
| Phase | Team leader | FWs | Extra personnel | Permissions or protocols | Digital cameras | Camera supplies | Extra supplies | Space |
| Fieldwork training for data collection | Fieldwork coordinator | ≥4 | One photographer | Permission to do a half-day training simulation in a supermarket | ≥1 camera/team of 2 FWs | — | — | Room with projector to give presentations |
| Data (photo) collection | Fieldwork coordinator | ≥4 | — | Written agreement between supermarket(s) and academic institution | ≥1 camera/team of 2 FWs | Extra camera batteries (1/camera); 32-GB memory card (1/camera) | Lab coat (1/FW), rubber gloves (per day), credential with photo (1/FW), copy of agreement (1/FW); external hard drives (1 TB) (≥2, 1 for daily use and 1 as exclusive backup) | Supermarkets |
| Data management | Data manager (same or different as fieldwork coordinator) | ≥4, same or different FWs | One assistant data manager | Protocol: data management (re-naming photo files) | — | — | 16-GB USB memory stick (1/FW); external hard drives from previous phase; REDCap platform [backup: Excel (Microsoft Corporation)]; STATA (StataCorp) | Personal computers with access to REDCap platform; online (free) forum |
| Data entry | Data manager (same as or different from fieldwork coordinator) | ≥4, same or different FWs | One assistant data manager | Protocol: data entry [Basic Excel (Microsoft Corporation)]; platform Nutrients/Portion Information/Ingredients) | — | — | 16 GB USB memory stick (1/FW); external hard drives from previous phase; REDCap platform [backup: Excel (Microsoft Corporation)]; STATA | Personal computers with access to REDCap platform; online (free) forum |
1
FW, fieldworker; GB, gigabyte; REDCap, Research Electronic Data Capture; TB, terabyte; USB, Universal Serial Bus.