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Table 1 Demographic and cognitive information for the whole sample of participants

From: Age-related decline in cognitive control: the role of fluid intelligence and processing speed

  Young adults (n = 80) Older adults (n = 80)
Gender ratio [male/female] 43/37 37/43
Educational level [years completed] 13.57 ± 2.28 14.5 ± 3.42
Mill Hill [Crystallized intelligence] 21.3 ± 5.09 27.5 ± 4.27
Raven’s advanced progressive matrices [Fluid intelligence] 52.85 ± 5.25 43.96 ± 7.74
Code test (WAIS-III) [Processing speed] 85.23 ± 12.68 57.64 ± 12.99
Mattis dementia rating scale   140.262 ± 0.291
  1. Mean raw score ± standard deviation.