CABRERA ÁLVAREZ, Pablo; LYNN, Peter. An Increase Matters, Not the Actual Value: Early Bird Incentives in Longitudinal Surveys. Survey Research Methods, [S. l.], v. 19, n. 1, p. 13–24, 2025. DOI: 10.18148/srm/2025.v19i1.8478. Disponível em: https://ojs.ub.uni-konstanz.de/srm/article/view/8478. Acesso em: 2 may. 2025.