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Economics Research Footprint
- A meta-analysis of economics research revealed small, underpowered studies similar to neuroscience.
- Exaggerated effects are common, often two-fold or even four-fold.
Meta-Analysis Validity
- Consider meta-analysis validity on a case-by-case basis, as it's not always superior to single studies.
- A flawed meta-analysis can result from flawed individual studies, but it can still reveal patterns.
Low Power Problems
- Low-powered studies have a low probability of detecting true effects (e.g., 8.5% chance in minimum wage studies).
- This leads to false negatives and inflated effect sizes when something is detected.