| Chan17 | R Documentation |
A dataset of multiple treatment effects of standardized mean differences on misinformation and debunking effects.
data(Chan17)
A data frame with 34 independent samples from 6 research reports.
Authora character vector of study
g_misinfoHedges' g of misinformation comparing the misinformation experimental and control groups
g_debunkHedges' g of debunking comparing the debuking experimental and misinformation experimental groups
v_misinfosampling variance of g_misinfo
c_mis_debSampling covariance between g_misinfo and g_debunk due to the overlap of the misinformation experimental group
v_debunksampling variance of g_debunk
PublicationYearpublication year
Publishedpublished or unpublished
MeanAgemean age of participants
PctFemalepercentage of female participants
The sampling variances and covariances are calculated using Gleser and Olkin's (2009) method for multiple treatment effects (Equations 3.3 and 3.4). Since the sample sizes of the misinformation, debunking, and control groups are not given, it is assumed they are equal.
Chan, M. S., Jones, C. R., Hall Jamieson, K., & Albarracin, D. (2017). Debunking: A meta-analysis of the psychological efficacy of messages countering misinformation. Psychological Science, 28(11), 1531-1546. https://doi.org/10.1177/0956797617714579
Gleser, L. J., & Olkin, I. (2009). Stochastically dependent effect sizes. In H. Cooper, L. V. Hedges, & J. C. Valentine (Eds.), The handbook of research synthesis and meta-analysis. (2nd ed., pp. 357-376). Russell Sage Foundation.
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