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. Author manuscript; available in PMC: 2019 Jan 1.
Published in final edited form as: J Learn Disabil. 2017 Jan 23;51(1):73–84. doi: 10.1177/0022219416688170

Table 2.

Moderator Analysis

Moderator K N B Qm Qe
Between Subjects 23 2942 .48* 6.17 2049.60**
Grade Level 23 2942 <−.01 .01 168.13**
Intervention 23 2942 .20 .47 2049.02**
Difficulty 23 2942 .30 67 2049.14
Delivery Method (2 modes below) 23 2942 4.45 2009.41
a. Recorded Voice .29
 b. Human Reader .44
Decoding Needed 23 2942 −.02 .01 2041.46**
Partly Oral Passages 23 2942 −.16 .32 2032.51**
Ability to Repeat Oral Reading 23 2942 .11 .16 2040.92**
Peer Reviewed 23 2942 .41 3.49 2028.56
Randomized 23 2942 .28 1.34 2046.64
Baseline 3 1337 .59 1.86 1.46

Note. K = number of studies included, B = change in effect size of 1 unit increase in moderator. Qm = heterogeneity explained by the moderator, Qe = remaining unexplained heterogeneity.