Case Study: Recruitment & Mode Effects on Sample Composition in Peru

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Case Study: Recruitment & Mode Effects on Sample Composition in Peru

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IPA Peru partnered with the Inter-American Development Bank (IDB) and the Ministries of Education in Colombia, Costa Rica, El Salvador, and Peru to study the effects of COVID-19 on educational systems in Latin America. In Peru, IPA conducted 4,939 surveys representing 2.3 percent of total pre-school and kindergarten enrollment in the country using two recruitment modes: a phone survey and a self-administered survey recruited using WhatsApp. Surveys that target caregivers of school-age children were more likely to reach women (respondents who identified as female) than men, but the way in which sample members are recruited can have a big impact on how large a majority women make up. In this case, with WhatsApp we reached an even higher share of women (91 percent versus 9 percent men) than phone (72 percent women versus 28 percent men). WhatsApp respondents were also younger. The research team hypothesized that the recruitment mode and administrative list construction combined to produce substantively different samples of parents.

Authors: Juan Manuel Hernández-Agramonte, Joaquín Armas, Kelly MontañoOlga NamenRayssa Ruiz EliasCarlos Urrutia

January 25, 2021