Table 2.

Two-level regression with participant-level random intercept and fixed effects of time and treatment for PIE and the 15 MSLQ scales

	Random	Fixed part
Scale	Intercept	Time and treatment effect		Time effect only
	ICC	R2	BIC	R2	BIC
PIE	0.66	0.07	410.143	0.069	399.323
MSLQ
IGO	0.269	0.007	10070.636	0.005	10027.532
EGO	0.346	0.007	10420.826	0.005	10377.412
TV	0.312	0.014	14179.596	0.012	14136.058
CBaL	0.221	0.011	9878.656	0.009	9832.988
SEfLaP	0.334	0.036	19428.128	0.034	19388.875
TA	0.253	0.002	13404.573	0.002	13357.443
R	0.165	0.01	10571.942	0.008	10529.513
ELA	0.292	0.006	14222	0.005	14178.355
O	0.319	0.005	9866.504	0.004	9822.927
CT	0.263	0.003	11751.478	0.002	11703.7
MSR	0.122	0.003	29923.339	0.003	29872.557
TaSE	0.085	0.004	22008.123	0.002	21966.763
ER	0.157	0.005	10085.647	0.004	10041.528
PL	0.296	0.006	7569.559	0.004	7529.637
HS	0.112	0.004	10977.313	0.004	10930.299

Intraclass coefficient (ICC), marginal R2-value,and Bayesian information criterion (BIC)