Does the single-item self-rated health measure the same thing across different wordings? Construct validity study.
Stéphane CullatiNaike BochatayClémentine RossierIdris GuessousClaudine Burton-JeangrosDelphine S CourvoisierPublished in: Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation (2020)
The three SRH forms were not equivalent in terms of construct validity. Studies examining the evolution of SRH over time with surveys using different forms should use the linear coding scheme to maximise equivalence between SRH forms.