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The NIMH AAMI criteria have been criticized for failing to reflect a decline in cognitive performance and an age- or disease-related process (Davis and Rockwood 2004). For example, persons with low premorbid functioning or limited education may qualify for a diagnosis of AAMI (Davis and Rockwood 2004). Moreover, using the proposed AAMI criteria, the majority of persons aged 65+ years qualify for a diagnosis (Bamford and Caine 1988). To improve the diagnostic criteria, Blackford and LaRue (1989) restricted the age range to apply to persons aged 50-79 years and altered the NIMH criteria for AAMI to reflect impaired performance (at least one standard deviation below the mean) on at least one memory test, as compared to young adults. They also created the classifications of age-consistent memory impairment (ACMI) and late-life forgetfulness.