Erdogan-Ciftci, Esen; van Doorslaer, Eddy; Bago d'Uva, … - In: Social Science & Medicine 71 (2010) 11, pp. 1981-1988
Researchers can rely either on retrospectively reported or on prospectively measured health changes to identify and quantify recent changes in respondents' health status. The two methods typically do not provide the same answers. We compare the validity of prospective versus retrospective...