Meta-analysis has become an increasingly popular tool used by many scientists to synthesise data. However, it's not without its detractors — from H. J. Eysenck, Ph.D., calling it "an exercise in mega-silliness" in 1978, to J. A. J. Heathers Ph.D., describing its use as a "profound moral failing" (he's half-serious) in 2016.

In this episode, Dan defends meta-analysis against more recent criticisms put forward by James and offers suggestions on how meta-analysis can be improved.

Links:

PRISMA statement - http://www.prisma-statement.org/

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