Abstract A study that would otherwise be eligible is commonly excluded from a meta-analysis when the standard error of its treatment-effect estimator, or estimate variance outcomes, not reported and cannot recovered available information. This wasteful treatment effect reported. We assess loss information caused by this practice explore methods imputation for missing variance. The are illustrat...

When a researcher estimates the parameters of a regression function using information on all 50 states in the United States, or information on all visits to a website, what is the interpretation of the standard errors? Researchers typically report standard errors that are designed to capture sampling variation, based on viewing the data as a random sample drawn from a large population of intere...

Session-specific features of a laboratory experiment, if those exist, do not disappear by clustering standard errors at the session level. Randomly ordering sessions, which is crucial to deal with sampling issues, cannot justify The experimental design should primarily determine In typical controlled experiment where subjects make choices in same environment repeatedly, participant level inheri...