“…A high false-positive rate has typically been reported when studies have adopted an operational definition of impairment based on only a single NCSE scale result (Drane & Osato, 1997;Engelhart, Eisenstein, & Meininger, 1994;Fields, Fulop, Sachs, Strain, & Fillit, 1992;Osato et al, 1993). This operational definition is suboptimal when working in the area of dementia assessment since the revised NCSE manual recommends impairment on the NCSE memory scale and at least one of the other four major domains measured as described in The Manual for Cognistat (Northern California Neurobehavioral Group, Inc., 2001).…”