cognitive abilities screening instrument cognitive abilities screening instrument the cognitive abilities screening instrument (casi) is a cognitive test screening for dementia, in monitoring the disease progression, and in providing profiles of cognitive impairment by examining abilities on attention, concentration, orientation, short-term memory, long-term memory, language abilities, visual construction, list-generating fluency, abstraction, and judgment with score ranges of 0 to 100, respectively. cognitive abilities screening instrumentpurposescreen for dementia