| wZ {metapro} | R Documentation |
wZ
Description
P-value combination based on weighted Z-method
Usage
wZ(p, weight = NULL, is.onetail = TRUE, eff.sign)
Arguments
p |
A numeric vector of p-values |
weight |
A numeric vector of weights (e.g., sample sizes) |
is.onetail |
Logical. If set TRUE, p-values are combined without considering the direction of effect, and vice versa. Default: TRUE. |
eff.sign |
A vector of signs of effect sizes. It works when is.onetail = FALSE |
Value
p : Combined p-value
overall.eff.direction : The direction of combined effects.
sumz : Sum of transformed z-score
References
Becker BJ (1994). “Combining significance levels.” In Cooper H, Hedges LV (eds.), A handbook of research synthesis, 215–230. Russell Sage, New York.
Stouffer SA, Suchman EA, DeVinney LC, Star SA, Williams RMJ (1949). The American soldier, vol 1: Adjustment during army life. Princeton University Press, Princeton.
Mosteller, F. & Bush, R.R. (1954). Selected quantitative techniques. In: Handbook of Social Psychology, Vol. 1 (G. Lindzey, ed.), pp. 289–334. Addison‐Wesley, Cambridge, Mass.
Examples
wZ(p=c(0.01,0.2,0.8), weight = c(20,10,40), is.onetail=FALSE, eff.sign=c(1,-1,1))