FunnelPlot: Funnel Plot for Meta-Analysis

In psychometric: Applied Psychometric Theory

Funnel Plot for Meta-Analysis

Description

Produces a simple x-y plot corresponding to the correlation and sample size. A vertical line is produced representing the sample weighted correlation.

Usage

FunnelPlot(x)

Arguments

x	A matrix or data.frame with columns Rxy and n: see EnterMeta

Details

Plot showing 'no evidence' of availabilty bias will resemble funnel getting smaller at the top, and larger at the bottom of the plot. A plot showing evidence of availablity bias will not resemble a funnel.

Value

a plot

Author(s)

Thomas D. Fletcher [e-mail]

References

Arthur, Jr., W., Bennett, Jr., W., and Huffcutt, A. I. (2001) Conducting Meta-analysis using SAS. Mahwah, NJ: Erlbaum.

Hunter, J.E. and Schmidt, F.L. (2004). Methods of meta-analysis: Correcting error and bias in research findings (2nd ed.). Thousand Oaks: Sage Publications.

Hunter, J.E., Schmidt, F.L., and Jackson, G.B. (1982). Meta-analysis: Cumulating research findings across studies. Beverly Hills: Sage Publications.

See Also

FileDrawer

Examples

# From Arthur et al
data(ABHt32)
FunnelPlot(ABHt32)

# From Hunter et al
data(HSJt35)
FunnelPlot(HSJt35)
 

psychometric documentation built on Nov. 6, 2023, 1:06 a.m.