1 what is a meta-analysis why are meta-analyses performed2, Ask an Expert

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1. What is a meta-analysis? Why are meta-analyses performed?

2. What is Bayes' theorem? Define prior distribution. What is a posterior distri- bution?

3. How do Bayesians treat parameters? How do frequentists treat parameters? Are the two approaches different from one another?

4. Why can missing data be a problem in data analysis? What is imputation?

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