Sample Proportion and Population Proportion
Surveys
Data Collection by Survey
Study Designs in Epidemiology
Randomized Experiments
Longitudinal Research
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Iterative Development of an Innovative Smartphone-Based Dietary Assessment Tool: Traqq
Published on: March 19, 2021
Yuankai Zhang1, Jian Rong2, Xuzhi Wang1
1Department of Biostatistics, School of Public Health, Boston University, Boston, MA, United States.
To combat survey fatigue in longitudinal studies, delivering smaller survey batches more frequently (biweekly) improved participant response rates compared to less frequent, larger batches (every 4 weeks). This digital health strategy enhances data quality over time.
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