Respondent fatigue reduces dietary diversity scores reported from mobile phone surveys in Ethiopia during the COVID-19 Pandemic

Background: The computer-assisted telephone interview (CATI) has been used extensively during the COVID-19 pandemic, but the effects of respondent fatigue during these interviews on responses to questions about diet are unknown.

Objectives: We designed an experiment that randomized the placement of a survey module on the dietary diversity of rural Ethiopian women and assessed whether responses were altered by placing this module earlier or later in a phone survey.