“…quality of care SCHAAP et Al. dementia (Cleary & Doodey, 2016;Duggan et al, 1996;Emerson, 2001;Iacono, Bigby, Carling-Jenkins, & Torr, 2014;Myrbakk & von Tetzchner, 2008); they tend to use an ad hoc approach (Iacono et al, 2014;Janicki, 2011;Janicki, McCallion, & Dalton, 2002;Watchman, 2008;Wilkinson, Kerr, & Cunningham, 2005). Therefore, an evidence-based method that provides insights, knowledge and skills for professionals in the care of older residents with intellectual disability and dementia is urgently needed, but not yet available.…”