Table 4.

Model parameters for additional items

Fixed effects	Estimate	SE	z value	p
Intercept	0.57	0.30	1.87	0.06
Pretest	2.27	0.68	3.33	< .001
Random effects	Variance	SD
Participant	5.11	2.26

Posttest ~ Pretest + (1|participant). SE standard error, SD standard deviation