Akashi-Ronquest N, Carrillo P, Dembling B, Stern S. Measuring the biases in self-reported disability status: evidence from aggregate data. Appl Econ Lett. 2011 Feb 23;18(11):1053-60. doi: 10.1080/13504851.2010.524603
Julvez J, Forns M, Ribas-Fito N, Mazon C, Torrent M, Garcia-Esteban R, Ellison-Loschmann L, Sunyer J. Psychometric characteristics of the California Preschool Social Competence Scale in a spanish population sample. Early Educ Dev. 2008;19(5):795-815.
Rousu M, Kosa K. Allowing options in experimental auctions. Appl Econ Lett. 2005;12(13):817-21. doi: 10.1080/13504850500193059