Comparison between RDS and WebRDS for epidemiological studies
e202412062es
Keywords:
respondent-driven sampling, RDS, WebRDS, biasAbstract
In epidemiological and social studies on populations without a sampling frame or that are hard to reach, respondent-driven sampling (RDS), under certain assumptions, has the potential to produce asymptotically unbiased and efficient population estimates for these populations. While RDS is typically conducted face-to-face, the online version (WebRDS) has gained attention due to its potential advantages, although its disadvantages are also rising concern in the methodological debate.
This study contributes to the methodological debate by critically comparing these two formats at the level of application and potential biases, where the online version offers improved speed and lower costs but raises concerns about potential biases due to a lack of face-to-face instructions regarding definition of the social network size and peer-recruiting process. Both formats can generate unbiased estimates, however, it's crucial to carefully consider potential sources of bias to meet the necessary assumptions.
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Copyright (c) 2024 Laura Esteve Matalí, Pedro Ferrer Rosende, Valeria Stuardo Ávila, Mauricio Fuentes Alburquenque, Albert Navarro Giné
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