“…The MDS-HC differs from the OASIS in that it is designed to serve multiple functions including care planning, eligibility screening, case mix, outcome measurement, and QIs (Hirdes et al, 1999a;Morris, Carpenter, Berg, & Jones, 2000). Reliability and validity of the MDS-HC data elements and its embedded scales have been demonstrated through a series of on-going international studies (e.g., Kwan, Chi, Lam, Lam, & Chou, 2000;Landi et al, 2000;Morris et al, 1997). For example, a five-country trial of inter-rater reliability showed an average weighted kappa of 0.74 for the MDS-HC items (Morris et al, 1997).…”