Table 3.

Interaction effects (time × intervention) of repeated measures Puri & Sen-analyses of ranked data for relative power values.

	Pillai's trace r2	L = (N − 1)r2	p	${\eta }_G^2$
AUDITORY STIMULI
Delta	0.218	3.052	0.079	0.01
Theta	0.445	6.230	0.007**	0.02
Alpha low	0.216	3.024	0.081	0.08
Alpha high	0.223	3.122	0.076	0.00
Beta	0.125	1.750	0.195	0.00
VISUAL STIMULI
Delta	0.020	0.280	0.618	0.00
Theta	0.215	3.010	0.082	0.00
Alpha low	0.260	3.640	0.052	0.01
Alpha high	0.174	2.436	0.122	0.00
Beta	0.240	3.360	0.064	0.01

N = 15; exergame group N = 7 and balance group N = 8. ^*p ≤ 0.05,

^**p ≤ 0.01, p-values are one-tailed and based on normalized data. ${\eta }_G^{\mathit{\text{2}}}$, effect size. Bold values indicate significance and medium or large effect size.