- Bedoelde u
- fact-to-fact survey
Zoekresultaten - 22 results
Unit Response and Costs in Web Versus Face-To-Face Data Collection: Comparison of Two Cross-sectional Health Surveys.
response than traditional modes, and this may increase bias in the measured indicators. OBJECTIVE: This research assesses the unit response and costs of a web study versus face-to-face (F2F) study. METHODS: ...
Energy Drink Consumption among Adolescents Attending Schools in Lubumbashi, Democratic Republic of Congo.
concentrations contained in ED s sold in Lubumbashi. METHODS: We conducted a cross-sectional survey in five schools using a standardised questionnaire taken face-to-face. Samples of locally purchased ED s were ...