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. Author manuscript; available in PMC: 2011 Dec 27.
Published in final edited form as: Alcohol Clin Exp Res. 2010 Jan 26;34(4):669–680. doi: 10.1111/j.1530-0277.2009.01136.x

Table 3.

MANOVA results for the between-group analyses of each of the EROEVK power measures (δ1, δ2, θ1, θ2 and α) with the multiple dependent variables taken as the particular log-transformed EROEVK power measure at the midline electrodes Fz, FCz, Cz, CPz and Pz. Follow-up univariate ANOVAs with each of the dependent variables taken independently and follow-up discriminant analysis with the dependent variables taken as the predictors in the discriminant function are shown for MANOVAs where the group effect is significant at p < 0.05.

Evoked ERO Power Measures Model: log(Fz), log(FCz), log(Cz), log(PCz), log(Pz)
Group (N = 96; 48 NACs, 48 LTAAs)
MANOVA: Error df =90
EROEVK power
δ1 (12 Hz, 300700ms)
 MANOVA df Pillai-Bartlett Trace F-value
5 .147 3.098*
MANOVA Follow-up Analyses
  Univariate ANOVAs
   Dependant Variables showing significance df Controls Mean Log Power LTAAs Mean Log Power Effect Size (% Variance) Group
    δ1 EROEVK power at Fz 0.380 0.372 0.0
    δ1 EROEVK power at FCz 0.522 0.387 2.8
    δ1 EROEVK power at Cz 1 0.640 0.443 4.8*
δ1 EROEVK power at CPz 1 0.758 0.539 6.3*
δ1 EROEVK power at Pz 1 0.808 0.533 9.9**
  Discriminant Analysis Wilks’ Lambda % Classification Accuracy
0.853* 64.6
   Predictors Standardized Canonical Discriminant Function Coefficients
    δ1 EROEVK power at Fz −1.04
    δ1 EROEVK powerat FCz 1.27
    δ1 EROEVK power at Cz −0.21
    δ1 EROEVK power at CPz −0.99
    δ1 EROEVK power at Pz 1.55

EROEVK power
δ2 (3-3 Hz, 300–700ms)
 MANOVA df Pillai-Bartlett Trace F-value
5 .094 1.858

EROEVK power
1 (4–5 Hz, 200–500ms)
 MANOVA df Pillai-Bartlett Trace F-value
5 .082 1.608

EROEVK power
2 (6–7 Hz, 200–400ms)
 MANOVA df Pillai-Bartlett Trace F-value
5 .086 1.699

EROEVK power
α(8–12 Hz, 100–300ms)
 MANOVA df Pillai-Bartlett Trace F-value
5 .064 1.221

Effect is significant:

*

p ≤ 0.05;

**

p ≤ 0.01;

***

p ≤ 0.001.