Table 7.

Change in Reading Comprehension (RC) over Time (Month) predicted by Delta DVAR (OLS) and other variables

Fixed effect	Coefficient	SE	t-ratio	df	p
Spring RC (intercept)	477.28	1.85	257.42	27	<0.001
Effect of SCHFARL	−0.04	0.04	−1.09	27	0.285
Effect of Delta DVAR	−0.14	0.04	−3.35	71	0.001
Effect of STFARL	−3.05	2.41	−1.27	71	0.210
Time (Month)	1.12	0.29	3.86	65	<0.001
Effect of Delta DVAR	−0.01	0.01	−2.09	65	0.041
Effect of STFARL	−0.39	0.34	−1.12	65	0.268
Vocabulary	0.23	0.09	2.72	65	0.008
Language	0.03	0.01	2.94	65	0.004
Non-Word Repetition	0.01	0.01	0.68	65	0.498
Final estimation of level 1 and level 2 variance components
Random effects	SD	Variance	df	χ2	p
Intercept, r0	7.49	56.14	71	264.56	<0.001
Level 1, e	6.89	47.48
Final estimation of level 3 variance components
Intercept u00	0.19	0.03	27	22.62	>.500

Note. Deviance = 1475.98, RC = Woodcock Johnson III (WJ3) Passage Comprehension, PV = Picture Vocabulary, Language, and Non-word repetition were entered as time varying covariates centered at the sample grand mean. School-wide % Free and Reduced Lunch (SCHFARL) was also grand mean centered. Student FARL (STFARL, 0 = did not receive, 1 = received) was not centered. Time is in months where fall = 1, winter = 5, and spring = 9. Delta DVAR = ordinary least squares residuals of change in DVAR from fall to spring.