TABLE 2.

Results of the linear mixed model for Experiment 1: F-values, p-values, and ES – effect sizes. Main effects (group: CP vs. VP; test: pretest vs. posttest) and interaction (group^∗test).

		Numerator	Denominator
Landmark	Source	df	df	F	p	ES
A	Intercept	1	14	363.519	0.000
	Group	1	14	0.035	0.854	0.051
	Test	1	142	0.981	0.324	0.138
	Group∗test	1	142	1.767	0.186
B	Intercept	1	14	94.170	0.000
	Group	1	14	4.530	0.052	0.887
	Test	1	142	4.909	0.028	0.204
	Group∗test	1	142	13.874	0.000
C	Intercept	1	14	201.983	0.000
	Group	1	14	1.276	0.278	0.462
	Test	1	142	9.901	0.002	0.301
	Group∗test	1	142	1.415	0.236
D	Intercept	1	14	379.205	0.000
	Group	1	14	0.194	0.667	0.167
	Test	1	142	6.709	0.011	0.282
	Group∗test	1	142	0.635	0.427
E	Intercept	1	14	677.095	0.000
	Group	1	14	0.300	0.592	0.173
	Test	1	142	0.570	0.452	0.097
	Group∗test	1	142	0.001	0.981