[Bug]: Bayesian equivalence test with Normal prior fails if interval starts with minus infinity #2984
Description
JASP Version
0.19.1
Commit ID
No response
JASP Module
Equivalence T-Tests
What analysis are you seeing the problem on?
Two sample t test
What OS are you seeing the problem on?
Windows 10
Bug Description
Using the equivalence t test module, I used the Normal (rather than default) prior, and encountered that the analysis led to infinity and 0 values when I entered as interval "minus infinity to -0.1", while "-0.1 to infinity" it gave decent values. I varied the interval, and it actually appears that this always happens when using the normal prior, and the second option for intervals, that is the one starting with -Inf. I show the output in a word document. I also uploaded a zipped version of my JASP file, and a screenshot of what happened.
Screenshot of bug jpg
Bug report on Equivalence t test.docx
st2shortBugReport.zip
It's a very annoying bug, because I use the equivalence t test to learn students how to interpret probabilities under posterior distributions, so I hope it can be solved soon.
Expected Behaviour
I actually explained what should happen, namely, I should get the complements to the results for the complement of the interval, which you get by choosing the interval from -0.1 to infinity.
Steps to Reproduce
I simply get it all the time if I choose the "Equivalence region" minus infinity to a particular value, when using the normal prior (not when using Cauchy prior or t prior)
Log (if any)
No response
More Debug Information
No response
Final Checklist
- I have included a screenshot showcasing the issue, if possible.
- I have included a JASP file (zipped) or data file that causes the crash/bug, if applicable.
- I have accurately described the bug, and steps to reproduce it.