Gunasekara, Fiona Imlach; Carter, Kristie; Blakely, Tony - In: Social Science & Medicine 74 (2012) 7, pp. 1117-1124
Self-rated health (SRH) is commonly used in longitudinal analyses as a repeated outcome measure. This assumes that computed changes in SRH over time truly represent within-individual changes in underlying health. The longitudinal validity of SRH, however, is threatened by ceiling effects (where...