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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Learn Individ Differ. 2013 Nov 12;30:46–57. doi: 10.1016/j.lindif.2013.11.001

Table 3c.

ORF-WF intercept and growth as predictors of end-of-year reading performance when controlling for beginning-of-year reading performance

Parameter Familiar
Novel
Typical Struggling-NI Struggling-I Typical Struggling-NI Struggling-I
Passage Comprehension
Posttest on
 Pretest .71 .77 .75 .66 .75
 Intercept T1 (T5) .07a (.07a) .11 (.11) .05a (.06a) .14 (.15) .10 (.10)
 Slope T1 (T5) .05a (.03a) .06a (.03a) .04a (.02a) −.08a (−.13a) .02a (−.01a)
Correlation
 Pretest, Intercept T1 (T5) .32 (.26) .39 (.41) .38 (.36) .35 (.34) .38 (.34)
 Pretest, Slope −.15a .06a .08a .05a −.15a
 Intercept, Slope T1 (T5) −.06a (.27) −.11a (.13a) .19a (.48) .10a (.41) −.14a (.15a)
Model R-square (%) 52 68 61 51 62
Sight Word Oral Reading Fluency
Posttest on
 Pretest .45 .69 .75 .61 .90
 Intercept T1 (T5) .42 (.43) .28 (.28) .06a (.06a) .25 (.27) .02a (.02a)
 Slope T1 (T5) .25 (.11a) .20 (.13a) .18 (.16) .37 (.28) .53 (.52)
Correlation
 Pretest, Intercept T1 (T5) .53 (.45) .79 (.72) .77 (.74) .60 (.52) .74 (.65)
 Pretest, Slope −.21 −.27 .16a −.10a −.30
 Intercept, Slope T1 (T5) −.07a (.27) −.13a (.13a) .19a (.48) .09a (.41) −.16a (.14a)
Model R-square (%) 58 80 72 72 83

Note. Estimates standardized. T1, T5 = intercept set at times 1 and 5. Bolded estimates are cases in which slope is a significant predictor. No model was estimated for Novel Struggling-NI students because there was no significant variance in ORF-WL slope among these students (see Table 2c). CFI = 1.0/0.99, RMSEA = .04/.06, SRMR = .02/.02 for Passage Comprehension and Sight Word Oral Reading Fluency, respectively.

a

Non-significant effects (p > .05).