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4 votes

How does one develop an intuitive understanding of statistical methods and the ability to "know" which test to use, why, and how to interpret results

I teach statistics to biology students. They're usually less than thrilled about statistics coming in. They also come to us for statistical consultancy during research projects Personally, the biggest ...
2 votes

Multivariable analysis for an ordinal dependent variable

It is crucial to select a good method for checking the proportional odds (PO) assumption. Which method did you use? Please note that the Bland test is very anti-conservative and that SAS should not ...
Frank Harrell's user avatar
1 vote

What criterion to use to compare multiple correlations of binary variables?

I think the problem might be that your formulation of null-hypothesis is not actionable. 'Question formulated less clearly than the rest' ... how would one derive something computable from it? You ...
Cryo's user avatar
  • 783
1 vote

How to disentangle effects of components in system?

As long as there it no bias in the selection of the valves that you expect could favor $P_1$ or $P_2$, you can use any standard comparison of the two distributions. The default choice would be the the ...
Guillaume Dehaene's user avatar
1 vote

How to perform a joint significance test for multiple coefficients across several regression models?

You can do this using a combination of weighted least squares (to account for likely heteroskedasticity), an F-test, and an appropriately structured linear regression. First, we construct our ...
jbowman's user avatar
  • 40.4k
1 vote

How to perform a joint significance test for multiple coefficients across several regression models?

Your goal is to show evidence that the each b-coefficients is zero. This is called "equivalence testing" and often performed by two one-sided tests, abbreviated as "TOST". This can ...
BenP's user avatar
  • 1,818
1 vote

How to perform a joint significance test for multiple coefficients across several regression models?

Testing the null hypothesis $\beta_{1x}=\ldots=\beta_{10x}=0$ assuming that the standard assumptions hold, two possibilties come immediately to mind. One is that you can test the null hypotheses $\...
Christian Hennig's user avatar

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