“…Indications of awareness or, conversely, unawareness, can be inferred from a diverse range of behaviours which include verbal reports, ability to set realistic goals, use of compensatory strategies, compliance with rehabilitation or treatment (e.g., medication), predictions of performance on a task and recognition of errors during performance (Fleming, Strong, & Ashton, 1996;Godfrey et al, 1993;Hart, Giovannetti, Montgomery, & Schwartz, 1998;Ownsworth, McFarland, & Young, 2000;Sohlberg et al, 1998;Trosset & Kaszniak, 1996). However, the most common approaches to measuring unawareness in people with brain injury and AD include the discrepancy method based upon self-ratings and informant ratings, and clinician rating methods (see reviews by Clare, 2004b;Clare, Marková, Verhey & Kenny, in press;Simmonds & Fleming, 2003). In view of the range of different indicators of awareness, it is clearly problematic for clinicians to provide an opinion that an individual's awareness is intact or absent on the basis of a single score or sample of behaviour.…”