Table 2

Mean z-scores (± standard deviation) for neuropsychological variables between groups, tested by ANOVA
Stage 1b (n = 94) Stage 2/3 (n = 100) Controls (n = 50) Significance Test [p] Post hoc
1b v 2/3 1b v Ctrl 2/3 v Ctrl
TMT A 0.02 ± 1.04 -0.08 ± 1.03 0.45 ± 0.79 F (2, 140.2) = 6.5 [.002] * *
RVP A -0.52 ± 1.34 -0.74 ± 1.27 0.08 ± 1.05 F (2, 210) = 6.6 [.002] * **
RAVLT sum -0.20 ± 1.12 -0.79 ± 1.30 0.16 ± 0.76 F (2, 148.6) = 15.9 [.000] ** ***
RAVLT A7 -0.15 ± 1.23 -0.92 ± 1.40 0.24 ± 0.81 F (2, 148.2) = 20.3 [.000] *** ***
SSP -0.07 ± 1.18 -0.08 ± 1.11 0.47 ± 1.13 F (2, 217) = 4.2 [.017] * ***
PAL errors -0.18 ± 1.05 -0.54 ± 1.25 0.33 ± 0.61 F (2, 141.8) = 16.0 [.000] * ***
IED errors 0.01 ± 0.82 -0.64 ± 1.21 0.01 ± 1.08 F (2, 116.3) = 9.3 [.000] *** **
TMT B -0.38 ± 1.29 -0.52 ± 1.28 0.22 ± 1.12 F (2, 230) = 5.8 [.004] * **
COWAT (FAS) -0.17 ± 0.99 -0.49 ± 1.04 -0.32 ± 0.14 F (2, 230) = 2.4 [.091]

Note: Significance levels for each Scheffe post-hoc comparison are depicted by: *** = p<.001; ** = p<.01; * = p<.05.

Hermens et al.

Hermens et al. BMC Psychology 2013 1:8   doi:10.1186/2050-7283-1-8

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