. 2019 Aug 14;10:1682. doi: 10.3389/fpsyg.2019.01682

TABLE 9.

Model parameters and summaries of linear and polynomial regression analyses of SLS-Berlin score predicting eyetracking measures collected for reading an easy and a difficult scientific text.

	Model parameters				Model summary
	Estimate	SE	t-value	p-value	adj. R²	F-value	p-value
Easy text
Mean first fixation duration
Linear	–0.74	0.28	–2.56	0.016	−	−	−
Quadratic	0.06	0.04	2.01	0.05	0.24	5.92	0.007
Cubic	−	−	−	−	−	−	−
Mean total reading time
Linear	–3.14	0.7	–4.47	<0.001	0.37	19.97	<0.001
Quadratic	−	−	−	−	−	−	−
Cubic	−	−	−	−	−	−	−
Difficult text
Mean first fixation duration
Linear	–0.85	0.27	–3.11	0.004	−	−	−
Quadratic	0.05	0.03	2.17	0.04	0.31	8.31	0.001
Cubic	−	−	−	−	−	−	−
Mean total reading time
Linear	−2.6^a	1.10^a	−2.37^a	0.03^a	−	−	−
Quadratic	0.23^a	0.10^a	2.01^a	0.05^a	0.23^a	5.77^a	0.007^a
Cubic	−	−	−	−	−	−	−

All models were checked for influential data points and outliers. ^aBest model fit after excluding one participant because of large standardized residual (< ± 2.5).