# Questions tagged [tost]

TOST, an acronym for Two One-Sided Tests, is a straightforward way of constructing a test of the "negativist" null hypothesis that two population statistics differ by no more than a small researcher-selected equivalence threshold.

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### Does TOST equivalence test handles subgroups within the group?

I just started on statistics so this is pretty hard for me. I have two identical experiments. Each experiment have gene expressions for 12 samples with different conditions: untreated. Dosage 50. 100. ...
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### When are equivalent TOST test possible?

For my end-of-study work in architecture, i am comparing different reconstruction (~10) distances from reference 3D model. I'd like to test if reconstruction are different using statistical tests. On ...
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### Equivalence testing for mixed measures (3x3; group X time) in R

Does anyone know how to calculate the statistical equivalence of a mixed measures study design in R? I know there was a thesis paper by Victoria Ng (see link below) that talks about different types of ...
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### Equivalence test for difference-in-differences regression

The results of my difference-in-differences estimator are insignificant and I was told than an equivalence test could help me to claim that the results are actually null. Even though I got the main ...
1 vote
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### Experimental Design for Equivalence Testing

I'm working on setting up a study that will test how quickly users click on various icons appearing on a computer screen using three different prototype mouse types. Subjects will visit on three ...
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### Simulate Equivalence Test

I am trying to simulate a paired t-test equivalence test. I generate x and y from the same Normal distribution thus I expect to ...
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### Equivalence test for two samples of categorical data

Let's say I have two packets of sweets, which can either be red or black. The packets look different, but I think they were produced at the same factory. I decide that if the distributions of the ...
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61 views

### Analysing TOST test output

I am given the following R output for a TOST test and would like to confirm whether my understanding is correct: p1 and p[2] are both <0.05 and thus one can reject the null hypothesis that both ...
1 vote
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### Equivalence tests for non-normal data?

I have some data that I can't necessarily assume to be drawn from normal distributions, and I would like to conduct tests of equivalence between groups. For normal data, there are techniques like TOST ...