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. Author manuscript; available in PMC: 2019 Mar 25.

Published in final edited form as: J Exp Child Psychol. 2018 Nov 7;178:226–250. doi: 10.1016/j.jecp.2018.09.007

Table 6.

Experiment 1: Fixed Effects and Variance Estimates for Number of Exposures Required for Mastery

	Mastery Model (Model 3)
Fixed Effects Parameter	Est.	(SE)	t
Intercept (γ₀₀₀)	10.56	.47	22.59
Item covariate
λ₁ posttest	−2.13	.15	−14.08
Child covariates
γ₀₀₂ Condition	−.52	.40	−1.30
γ₀₀₃ PA	−.21	.06	−3.84
γ₀₀₄ RAN	.03	.01	3.07
γ₀₀₅ Vocabulary	−.11	.06	−1.76
Word covariates
γ₀₀₆ Regularity	−1.64	.54	−3.06
γ₀₀₇ Imageability	−.99	.54	−1.85
γ₀₀₈ Regularity*Imageability	1.84	.76	2.42

	% var explained

Person	50.00
Word	17.69

Note: PA = Phonological awareness (elision); RAN = Rapid automatic naming; Imag. = Imageability

p < .05 for variables in bold