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Rough approximation of the between-study variance based on assumption about the typical sample size of studies included in the synthesis
tau2_approximation(sample_size = 100, es, df_minus2 = TRUE)
A tibble with small, medium, and large magnitudes of tau2
tibble
Typical sample size of studies
Smallest effect size of practical concern
If degrees of freedom should be df-2 or just df
tau2_approximation( sample_size = 50, es = 0.1, df_minus2 = TRUE )
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