Table 3. Parameters for the fixed effects of the minimal adequate model (see text for details) of theta band voltage density, including fixation durations as a continuous predictor variable.

Effect	Estimate	Std. error	t-value
Intercept	2.12	0.32	6.56
Group:Older adults	0.26	0.48	0.53
Medium:E-reader	−0.01	0.08	−0.15
Medium:Book page	0.03	0.06	0.42
Fixation time	0.16	0.01	14.64
Group * Fixation time	−0.05	0.01	−3.16