Instrument	Sensitivity (%)	Specificity (%)	Positive predictive value (%)*	Negative predictive value (%)†
Mini-Mental State Examination	71 to 92	56 to 96	15 to 72	95 to 99
Blessed Information Memory Concentration	90	65 to 90	22 to 50	98 to 99
Blessed Orientation Memory Concentration	69	90	43	96
Short Test of Mental Status	81	90	47	98
Functional Activity Questionnaire	90	90	50	90