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. Author manuscript; available in PMC: 2021 Jan 1.
Published in final edited form as: Sci Stud Read. 2019 Jul 8;24(1):23–56. doi: 10.1080/10888438.2019.1631827

Table 12.

Moderators of bivariate shared environmental correlations for reading and math.

Moderator k QM(df) p τ2 I2 (%) R2 (%)
Age 59 0.04(1) .83 0.79 100.0 0.00
Race Reported 9 20.52(1) <.01 0.23 99.8 70.99
Race Inferred 59 7.23(1) <.01 0.70 100.0 9.72
Grade-Level 13 6.92(4) .14 0.23 99.8 19.64
Nationality 59 0.13(2) .94 0.80 100.0 0.00
Project 56 4.96(4) .29 0.71 100.0 1.71
Clinical Status 59 4.08(1) .04 0.73 100.0 5.06
Reading Assessment 59 9.30(9) .41 0.77 100.0 0.52
Reading Domain 59 3.97(5) .55 0.79 100.0 0.00
Reading Assessment Format 59 5.49(3) .14 0.74 100.0 4.12
Math Assessment 59 11.19(6) .08 0.71 100.0 8.23
Math Domain 59 28.87(5) <.01 0.55 100.0 29.18
Math Assessment Format 59 15.41(4) <.01 0.65 100.0 16.45
DeFries-Fulker 59 0.47(1) .49 0.78 100.0 0.00

Note. Significant (p < .05) moderators are indicated in bold. k represents the number of studies included in the analysis.R2 indicates the total amount of heterogeneity accounted for by the specified moderator. SES reported did not show sufficient variability for moderator analyses.