Title

A Procedure For Combining Sample Correlation-Coefficients And Vote Counts To Obtain An Estimate And A Confidence-Interval For The Population Correlation-Coefficient

Authors

Authors

B. J. Bushman;M. C. Wang

Comments

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Abbreviated Journal Title

Psychol. Bull.

Keywords

Psychology; Psychology, Multidisciplinary

Abstract

Missing effect-size estimates pose a particularly difficult problem in meta-analysis. Rather than discarding studies with missing effect-size estimates or setting missing effect-size estimates equal to 0, the meta-analyst can supplement effect-size procedures with vote-counting procedures if the studies report the direction of results or the statistical significance of results. By combining effect-size and vote-counting procedures, the meta-analyst can obtain a less biased estimate of the population effect size and a narrower confidence interval for the population effect size. This article describes 3 vote-counting procedures for estimating the population correlation coefficient in studies with missing sample correlations. Easy-to-use tables, based on equal sample sizes, are presented for the 3 procedures. More complicated vote-counting procedures also are given for unequal sample sizes.

Journal Title

Psychological Bulletin

Volume

117

Issue/Number

3

Publication Date

1-1-1995

Document Type

Article

Language

English

First Page

530

Last Page

546

WOS Identifier

WOS:A1995QX81500010

ISSN

0033-2909

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