Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Psychol Methods. 2002 Mar;7(1):105-25.

Combining effect size estimates in meta-analysis with repeated measures and independent-groups designs.

Author information

  • 1Institute of Psychology, Illinois Institute of Technology, Chicago 60616, USA. scott.morris@iit.edu

Abstract

When a meta-analysis on results from experimental studies is conducted, differences in the study design must be taken into consideration. A method for combining results across independent-groups and repeated measures designs is described, and the conditions under which such an analysis is appropriate are discussed. Combining results across designs requires that (a) all effect sizes be transformed into a common metric, (b) effect sizes from each design estimate the same treatment effect, and (c) meta-analysis procedures use design-specific estimates of sampling variance to reflect the precision of the effect size estimates.

PMID:
11928886
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Icon for American Psychological Association
    Loading ...
    Write to the Help Desk