“…These scales contain all or some of the six behavioral indices recommended by the GSA, and include the Pain Assessment Checklist for Seniors with Limited Ability to Communicate (PAC-SLAC) ( Fuchs-Lacelle & Hadjistavropoulos, 2004 ), Discomfort Scale-Dementia of the Alzheimer Type (DS-DAT) ( Hurley et al, 1992 ), Doloplus-2 ( Rostad et al, 2017 ), Pain Assessment in Advanced Dementia (PAINAD) ( Warden et al, 2003 ), Checklist of Nonverbal Pain Indicators (CNPI) ( Feldt, 20 0 0 ), and Pain Assessment for Demented Elderly (PADE) ( Villanueva et al, 2003 ). Among these scales, only the PACSLAC has been validated in Korea ( Kim et al, 2014 ); it encompasses all six behavioral indices suggested by the GSA and can thus detect even small behavioral changes. However, as the PAC-SLAC is a lengthy instrument consisting of 60 items, which may be useful for monthly or quarterly assessments but is not appropriate for clinical practitioners in Korea that must assess patients' pain several times a day to provide immediate interventions ( Lee & Song, 2016 ).…”