We’re constantly seeking ways to optimize our PPC campaigns and maximize impact. Testing is critical to this process, but traditional methods like A/B tests, incrementality evaluations and geo ...
This paper describes threats to making valid causal inferences about pandemic impacts on student learning based on cross-year comparisons of average test scores. The paper uses Spring 2021 test score ...
Understanding the advantages and limitations of economists’ methods clarifies the value they can add to analysis of non-economic questions. Equally important, it underscores how economists’ approach ...
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