Investigating the Efficacy of an Individualized Alpha/Delta Neurofeedback Protocol in the Treatment of Chronic Tinnitus

Table 4

Results of the repeated-measure mixed model ANOVA and a priori-defined contrasts for primary outcome variables.

			df		Effect size
THI
ANOVA	9.18		3	0.027
t1-t2		-2.76	69	0.011	0.32
t1-t3		-2.30	69	0.037	0.27
t1-t4		-2.34	69	0.033	0.27
TQ
ANOVA	5.24		3	0.155
t1-t2		-1.48	69	0.214	0.18
t1-t3		-1.54	69	0.192	0.18
t1-t4		-2.21	69	0.046	0.26
Loudness
ANOVA	12.4		3	0.006
t1-t2		-2.74	69	0.012	0.31
t1-t3		-0.45	69	0.978	0.05
t1-t4		0.63	69	0.794	0.08
Ratio EEG-NT
ANOVA	3.54		2	0.170
t1-t2		0.72	46	0.475	0.11
t1-t3		1.86	46	0.069	0.26
IAF EEG-NT
ANOVA	0.99		2	0.610
t1-t2		0.83	46	0.409	0.12
t1-t3		0.86	46	0.394	0.13
Delta EEG-NT
ANOVA	1.24		2	0.539
t1-t2		0.15	46	0.885	0.02
t1-t3		-0.87	46	0.390	0.13
Ratio EEG-WT
ANOVA	7.77		2	0.021
t1-t2		2.83	46	0.007	0.39
t1-t3		1.21	46	0.234	0.17
IAF EEG-WT
ANOVA	0.51		2	0.776
t1-t2		0.69	46	0.494	0.10
t1-t3		0.24	46	0.811	0.04
Delta EEG-WT
ANOVA	5.74		2	0.057
t1-t2		-2.42	46	0.020	0.34
t1-t3		-1.13	46	0.263	0.16

Note: values of contrast analysis are Bonferroni corrected and one-tailed. ; .