survey experiment in Tanzania that varied two key dimensions: the level of detail of the questions and the type of respondent …. Significant differences are observed across survey designs with respect to different labor statistics. Labor force participation … rates, for example, vary by as much as 10 percentage points across the four survey assignments. Using a short labor module …

randomized survey experiment in Tanzania focusing on two survey aspects: different questionnaire design to classify children work …. Proxy reports do not differ significantly from a child’s self-report. Further analysis demonstrates that survey design …

reads to physical stock counts and to survey responses. There are three main findings. First, current RFID-technology is … of survey responses and physical stock-takes shows much higher accuracy for survey measures. As a result, the study …