Work

Positive estimation of the between-study variance in meta-analysis : theory and methods

Year: 2002

Type: article

Abstract: Positive estimators of the between-study variance are proposed. Explicit variance formulae for the estimators are given and approximate confidence intervals for the between-group variance are constructed, thus helping to partly solve a long outstanding and open problem. By Monte Carlo simulation, the bias and standard deviation of the proposed estimators are compared with a standard estimator in meta-analysis. Attained confidence coefficients of the constructed confidence intervals are also presented. To illustrate the application of the proposed procedures, three examples are given, the first is from agriculture, the other two are from clinical trials with normal and binary outcomes, respectively.

Source: South African Statistical Journal

Authors: Johanna Hartung, Kepher H. Makambi

Institutions: TU Dortmund University, Jomo Kenyatta University of Agriculture and Technology

Language: English

Topic: Meta-analysis and systematic reviews

Subfield: Statistics, Probability and Uncertainty

Field: Decision Sciences

Domain: Social Sciences

Open Access status: diamond

OpenAlex ID: W195581944

FWCI: 0.535

Cites:

Cited by: 13

Related to: 10