Table 4.

The results of the split-plot repeated measures ANOVA for MCI.

Between-subjects factor		Observed power
Group	F(1,29) = 0.10; p = 0.76	0.06
Within-subjects factors
Instrument	F(1,29) = 6.03; p < 0.02*	0.66
Masker	F(1.61,46.57) = 14.25; p < 0.001*	0.99
Instrument x Masker	F(1.89,54.68) = 0.26; p = 0.72	0.01
Instrument x Group	F(1,48) = 0.45; p = 0.51	0.10
Masker x Group	F(1.61,46.57) = 0.26; p = 0.72	0.09
Instrument x Masker x Group	F(1.89,54.68) = 1.01; p = 0.37	0.21

^*significant (p < 0.05).