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. Author manuscript; available in PMC: 2009 Apr 8.
Published in final edited form as: J Int Neuropsychol Soc. 2009 Jan;15(1):121–129. doi: 10.1017/S1355617708090176

Table 5.

Positive and Negative Predictive Power of the Ordinal NAB List Learning Model at Various Base Rates

Predicted Diagnosis Base Rate
(Ordinal Model) 1% 5% 10% 20% 33% 50%
aMCI
PPP .05 .22 .37 .57 .72 .84
NPP .99 .97 .94 .87 .78 .63
AD
PPP .18 .53 .71 .84 .91 .96
NPP 1.00 .98 .96 .92 .85 .73

Note. aMCI = Amnestic mild cognitive impairment; PPP = Positive Predictive Power; NPP = Negative Predictive Power; AD = Alzheimer’s Disease.