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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Psychol Sci. 2014 Sep 11;25(10):1870–1883. doi: 10.1177/0956797614544511

Table 3.

Stepwise multiple regression predicting reading outcome

Model R Adjusted
R2
Change		 β t Significance
1
    PLI1 0.599 0.342 0.599 4.494 <0.001
2
    PLI1 0.721 0.150 0.545 4.613 <0.001
    ROI 1 0.404 3.415 0.002
3
    PLI1 0.770 0.066 0.535 4.846 <0.001
    ROI1 0.817 4.101 <0.001
    ROI2 −0.494 −2.491 0.018

PLI1= Preliteracy Index 1, a composite of phonological awareness (PA), letter knowledge, and vocab.