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An IERI – International Educational Research Institute Journal

Table 5 Random-effects means

From: A quantitative synthesis of the immigrant achievement gap across OECD countries

Subject

Mean effect size d ¯ *

Between-effects variance Ï„ ^ 2

95% Confidence interval for the mean

95% Prediction interval

Mathematics

0.38

0.11

[0.33, 0.43]

[-0.27, 1.03]

Reading

0.38

0.09

[0.33, 0.43]

[-0.21, 0.97]

Science

0.43

0.09

[0.38, 0.48]

[-0.16, 1.02]