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. Author manuscript; available in PMC: 2019 Jan 1.
Published in final edited form as: Neuropsychology. 2017 Jun 19;32(1):89–101. doi: 10.1037/neu0000385

Table 1.

Demographic and psychometric data – means (SDs) - as a function of group.

Healthy middle-aged Healthy older adults AD individuals
N Mean (SD) N Mean (SD) N Mean (SD)
Age (years) 270 61.79 (5.84) 282 76.58 (5.27) 77 76.08 (7.17)
Education (years) 261 16.13 (2.52) 269 15.40 (2.68) 71 15.55 (2.88)
MMSE 236 29.32 (.92) 267 28.86 (1.45) 71 24.92 (3.53)
SRT - Free Recall 229 32.89 (5.19) 259 31.42 (6.16) 52 16.17 (9.44)
SRT - Total Recall 229 47.90 (.32) 259 47.76 (.64) 52 40.58 (9.17)
Reading Span 179 8.04 (2.76) 178 6.35 (2.26) 50 4.52 (1.98)

Note: MMSE = Mini-Mental State Examination; SRT = Selective Reminding Test. Higher scores indicate better performance.