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Statistical Models and Causal Inference by Jasjeet S. Sekhon, David Collier, David A. Freedman

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2Statistical Assumptions as Empirical Commitments

With Richard A. Berk

        ABSTRACT. Statistical inference with convenience samples is a risky business. Technical issues and substantive issues overlap. No amount of statistical maneuvering can get very far without deep understanding of how the data were generated. Empirical generalizations from a single data set should be viewed with suspicion. Rather than ask what would happen in principle if the study were repeated, it is better to repeat the studyas is standard in physical science. Indeed, it is generally impossible to predict variability across replications of an experiment without replicating the experiment, just as it is generally impossible to predict the effect of intervention without ...

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