Table 2.
Minimum and maximum possible score in the tests, mean values and standard deviations (in parenthesis) for neuropsychological measures and t-test comparison between scores measured at baseline (T1) and at follow-up (T2) (n = 266).
| Minimum-maximum score | T1 | Skew T1 | Kurtosis T1 | T2 | Skew T2 | Kurtosis T2 | t Student | Effect Size | |
|---|---|---|---|---|---|---|---|---|---|
| Episodic memory | |||||||||
| CVLT short term free recall | 0–16 | 8.94 (3.81) | −0.350 (0.153) | −0.404 (0.306) | 9.72 (4.11) | −0.497 (0.150) | −0.315 (0.298) | 4.33* | 0.09 |
| CVLT short term cued recall | 0–16 | 10.21 (3.53) | −0.605 (0.153) | −0.017 (0.306) | 10.84 (3.62) | −0.748 (0.150) | 0.002 (0.298) | 5.12* | 0.11 |
| CVLT long term free recall | 0–16 | 9.85 (3.92) | −0.578 (0.153) | −0.084 (0.306) | 10.34 (4.28) | −0.765 (0.150) | −0.159 (0.298) | 4.01* | 0.09 |
| CVLT long term cued recall | 0–16 | 10.51 (3.56) | −0.659 (0.153) | 0.103 (0.306) | 11.19 (3.91) | −0.906 (0.150) | 0.190 (0.298) | 3.99* | 0.07 |
| Working memory | |||||||||
| Counting span correct items | 0–60 | 26.81 (12.04) | −0.504 (0.153) | 0.235 (0.306) | 30.26 (13.12) | −0.667 (0.153) | 0.135 (0.304) | 4.78* | 0.10 |
| Counting span correct series | 0–6 | 2.49 (1.27) | 0.532 (0.153) | −0.199 (0.306) | 2.73 (1.31) | −0.310 (0.153) | −0.740 (0.304 | 2.77** | 0.02 |
| Listening span correct items | 0–60 | 13.69 (7.73) | 0.072 (0.153) | −0.990 (0.306) | 14.71 (8.94) | −0.115 (0.153) | −1.230 (0.304) | 4.23* | 0.08 |
| Listening span correct series | 0–6 | 1.28 (1.15) | 1.543 (0.153) | 5.061 (0.306) | 1.44 (1.16) | −1.004 (0.153 | 1.390 (0.304) | 2.79** | 0.03 |
| General cognitive performance | |||||||||
| MMSE total | 0–30 | 27.41 (2.23) | −1.162 (0.153) | 0.992 (0.306) | 27.14 (2.75) | −1.381 (0.149) | 1.667 (0.298) | 2.89** | 0.04 |
| CAMCOG-R Orientation | 0–10 | 9.49 (0.78) | −1.588 (0.153) | 2.206 (0.306) | 9.48 (1.04) | −2.471 (0.149) | 5.920 (0.298) | 0.12 | |
| CAMCOG-R Attention | 0–9 | 7.17 (1.84) | −0.935 (0.153) | 0.256 (0.306) | 7.35 (1.85) | −0.756 (0.149) | −0.758 (0.298) | 1.93** | 0.02 |
| CAMCOG-R total | 0–105 | 85.56 (9.27) | −0.530 (0.153) | −0.079 (0.306) | 86.97 (10.63) | −0.897 (0.149) | 0.483 (0.298) | 4.11* | 0.09 |
CVLT, California Verbal Learning Test; MMSE, Mini-Mental State Examination; CAMCOG-R, Cambridge Cognitive Examination-Revised; T1, Baseline; T2, Follow-up.∗p < 0.01,∗∗p < 0.05.