Tools for Those Who Summarize the Evidence Base
Resources and networking for those who conduct or interpret meta-analyses related to any phenomenon that is gauged in multiple studies.
Hi all,
I'm conducting a sr and meta analysis of interventions that target children with ADHD in school settings. The studies reviewed include both treatment as usual comparisons and experiments placebo controls. Can these types of studies be combined in a single meta analytic synthesis? I wondered about conducting a moderator analysis using design type as a predictor variable?
Any comments welcome!
thanks,
Michelle
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As long as both types of studies use the same two-group design, my understanding is that you could combine them. It sounds like you anticipate heterogeneity of effect size from this a priori so random effects assumptions would be indicated and conducting a moderator analysis with design type as your moderator also makes good sense. Happy meta-analyzing!
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