[R-meta] standardized betas transformed to correlation coefficients

[Yingkai]

Dear all,

I am confused about how to transform standardized betas  to correlation
coefficients.
Can I used the simple imputation formula proposed by Peterson and Brown
(2005) where r = β + 0.05 λ ?  λ is an indicator variable that equals 1
when β is nonnegative and 0 when β is negative. Is this correct? or
acceptable ?


best,
-- 
Yingkai, Ph.D Candidate
Southwest University, ChongQing, CHINA.

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