Re: [R] Main-effect of categorical variables in meta-analysis (metafor)

2011-08-05 Thread Viechtbauer Wolfgang (STAT)
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[R] Main-effect of categorical variables in meta-analysis (metafor)

2011-08-05 Thread Jokel Meyer
Dear R-experts! In a meta-analysis (metafor) I would like to assess the effect of two categorical covariates (A & B) whereas they both have 4 levels. Is my understanding correct that this would require to dummy-code (0,1) each level of each covariate (A & B)? However I am interested in the main-ef