Table 1.
Participant characteristics
| Variable | R [95% CI] with age | M (s.d.) |
|---|---|---|
| Age | 49.71 (17.92) | |
| Gender | 42F/33M | |
| Digit span | –0.44 [–0.61, –0.23] | 16.24 (4.04) |
| Letter–Number Sequencing | –0.58 [–0.71, –0.4] | 11.31 (2.98) |
| Numeracya | –0.26 [–0.46, –0.04] | 11.85 (3.16) |
| Paired associates delayed recallb | –0.62 [–0.74, –0.45] | 5.82 (2.42) |
| Shipley Vocabulary Subscale | 0.13 [–0.11, 0.34] | 33.37 (5.4) |
| Trails testc | 0.39 [0.18, 0.57] | 38.17 (30.22) |
Notes: Digit Span and Paired Associates Delayed Recall from the WMS-III, Wechsler Memory Scale, Third Edition, (Wechsler, 1997 b); WAIS-III, Letter-Number Sequencing, (Wechsler, 1997a); Numeracy, (Peters et al., 2007); Shipley Vocabulary Subscale, (Shipley, 1940); Trails Test, (Corrigan & Hinkeldey, 1987). Significant correlations denoted in bold.
a
Numeracy score for one participant was not recorded.
b
Delayed Recall not recorded for four participants.
c
Trails test score is the difference in time to complete Trail A and Trail B.