fail_to_es

Converts number of 'failure' groups to an effect size of  d (mean difference), g (unbiased estimate of d), r (correlation coefficient), z (Fisher's z), and log odds ratio. The variances of these estimates are also computed.

arith

This package contains several functions that will convert
        a variety of statistics, such as a t-test or p-value and sample
        size, to effect sizes of d (mean difference), g (unbiased
        estimate of d), r (correlation coefficient), z (Fisher's z),
        and log odds ratio. The variances of these estimates are also
        computed. These conversion functions are a particularly useful
        resource during the preliminary stages of a meta-analytic
        project, when coding for relevant effect size data (and the
        appropriate statistic is not reported). This package uses
        recommended coversion formulas as described in The Handbook of
        Research Synthesis and Meta-Analysis (Cooper, Hedges, &
        Valentine, 2009).

fail_to_es: Failure groups to Effect Size

Description

Usage

Arguments

Value

References

See Also