meanp(p)
## S3 method for class 'meanp'
print(x, ...)
Arguments
p
A vector of p-values
x
An object of class ‘meanp’
...
Other arguments to be passed through
Details
Defined as
z = (0.5 - mean(p)) * sqrt(12k)
which is a standard normal
The values of p should be such that 0<=p<=1.
A warning is issued if this means that studies are omitted
and an error results if,
possibly after deletion of illegal values, fewer than four studies remain.
The plot method for class ‘metap’ calls schweder on the valid
p-values
Value
An object of class ‘meanp’ and ‘metap’,
a list with entries
z
Value of z
p
Associated p-value
validp
The input vector with illegal values removed
Author(s)
Michael Dewey
References
Becker, B J. Combining significance levels. In
Cooper, H and Hedges, L V, editors
A handbook of research synthesis,
chapter 15, pages 215–230.
Russell Sage,
New York, 1994.
Rosenthal, R. Combining the results of independent studies.
Psychological Bulletin,
85:185–193, 1978.
See Also
See also schweder
Examples
data(rosenthal)
meanp(rosenthal$p) # 2.17, p = 0.015 one tailed