“…The higher the health of a person relative to the severity of an item, the higher the probability that that person will give to the item a response that is indicative of health (e.g., a response "no" to an item like "I have trouble falling asleep"). Because of their general applicability, Rasch models have been used in several areas, including personality and health assessment, education, and market research (see, e.g., Bechtel, 1985;Vidotto et al, 1998Vidotto et al, , 2006Vidotto et al, , 2007Vidotto et al, , 2010aDuncan et al, 2003;Cole et al, 2004;Bezruczko, 2005;Pallant and Tennant, 2007;Shea et al, 2009;Anselmi et al, 2011Anselmi et al, , 2013aAnselmi et al, ,b, 2015Da Dalt et al, 2013, 2017Balsamo et al, 2014;Rossi Ferrario et al, 2019;Sotgiu et al, 2019).…”