/explore
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hbiostat.org | ||
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statsandr.com
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| | | | | Learn how to apply the Student's t-test by hand and in R in order to compare two independent or paired samples with known or unknown variances | |
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www.rdatagen.net
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| | | | | We've finally reached the end of the road. This is the fifth and last post in a series building up to a Bayesian proportional hazards model for analyzing a stepped-wedge cluster-randomized trial. If you are just joining in, you may want to start at the beginning. The model presented here integrates non-linear time trends and cluster-specific random effects-elements we've previously explored in isolation. There's nothing fundamentally new in this post; it brings everything together. Given that the groundwork has already been laid, I'll keep the commentary brief and focus on providing the code. | |
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fharrell.com
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| | | | | Historical data (HD) are being used increasingly in Bayesian analyses when it is difficult to randomize enough patients to study effectiveness of a treatment. Such analyses summarize observational studies' posterior effectiveness distribution (for two-arm HD) or standard-of-care outcome distribution (for one-arm HD) then turn that into a prior distribution for an RCT. The prior distribution is then flattened somewhat to discount the HD. Since Bayesian modeling makes it easy to fit multiple models at once... | |
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errorstatistics.com
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| | | Some have asked me why I haven't blogged on the recent follow-up to the ASA Statement on P-Values and Statistical Significance (Wasserstein and Lazar 2016)-hereafter, ASA I. They're referring to the editorial by Wasserstein, R., Schirm, A. and Lazar, N. (2019)-hereafter, ASA II(note)-opening a special on-line issue of over 40 contributions responding to the call... | ||
