calc.a | R Documentation |
This function is a helper function that calculates one element of the standardized mean difference effect size variance based on Hedges and Olkin p128-131.
calc.a(f, A)
f |
a vector defining the degrees of freedom for the effect sizes |
A |
a vector defining the constants that relate each StdMD to its related t-variable where t^2=Ad^2 |
The value of a.
Barbara Kitchenham and Lech Madeyski
reproducer:::calc.a(10,2/10)
# [1] 0.2128649
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