Table 3 Coding of different materials.
Source of materials | Format of identifying number | Example of identifying number |
|---|---|---|
Questionnaire | QD subject-time-number | QDa20210418–1 |
Interview | FI-I subject-number | FI-Ia-E1 |
Internet (blog, website, etc.) | I subject-time-number | Ia20210418–1 |
Others (daires, notes, etc.) | O subject-time-number | Oa20210418–1 |