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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: Neuropsychologia. 2014 Apr 18;59:47–56. doi: 10.1016/j.neuropsychologia.2014.04.007

Table 3.

False alarm rate by feature overlap and trial stage M (SD)

Feature Overlap
Zero One Two
Trial Stage
Young
Early .00 (.00) .00 (.01) .04 (.06)
Middle .00 (.00) .00 (.02) .05 (.06)
Late .00 (.01) .01 (.02) .05 (.05)
CDR 0
Early .00 (.01) .02 (.03) .10 (.09)
Middle .00 (.02) .02 (.04) .14 (.11)
Late .01 (.03) .02 (.04) .10 (.08)
CDR 0.5
Early .03 (.04) .10 (.10) .22 (.10)
Middle .06 (.06) .11 (.08) .25 (.12)
Late .05 (.06) .11 (.09) .22 (.14)

Note: False alarm rates listed as .00 are due to rounding, as each group had some false alarms at each level of feature overlap and trial stage, accounting for cases where the mean is listed as zero but the standard deviation is greater than zero. Early refers to positions 2-4, Middle 5-7, Late 8-10. CDR = Clinical Dementia Rating CDR 0 = no dementia; CDR 0.5 = very mild Alzheimer’s disease