Meta-analysis is a sound principle but undermined by selection bias. This is why every meta-analysis includes selection criteria for which studies are incorporated into the analysis. Unfortunately publication bias is systemic and biases the results.
The quote referenced is poetic and pithy but I fail to understand how it applies to meta-analysis and selection bias. What is the cow pie in this scenario?
The quote referenced is poetic and pithy but I fail to understand how it applies to meta-analysis and selection bias. What is the cow pie in this scenario?