Hello !
Running a Binomial Logistic Regression gives me results that should not be possible.
I am trying to determine whether qualifying for Round 1, Round 2, National Finals and International Finals (factor Round) in a Science Olympiad determines whether respondents recommend participating in the Olympiad ("yes"/"no").
Now, everyone who made it to the International final has said "yes" so the probability computed is 1.0. However, when this probability is compared against Round 1 (0.35 probability compared to "no") it tells me that the difference is not statistically significant. However, comparing Round 1 (0.35) to Round 2 (0.75) rightfully says it is highly significant.....
Is this a bug of jamovi when probabilities are 100%?
Thank you!
Logistic regression returns improbable non-sig results
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Logistic regression returns improbable non-sig results
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Re: Logistic regression returns improbable non-sig results
probably not a bug in jamovi, possibly a property of logistic regression.Is this a bug of jamovi when probabilities are 100%?
a lot of statistical tests don't work when you have no variance in a cell.
i personally don't know enough about this procedure to say more, perhaps someone else will chime in (but i think we're past the point where people are finding bugs in analysis results, so if you think there's a bug in jamovi here, you'll have to do a bit more leg-work to demonstrate it ... i.e. demonstrate a different result in different software)
cheers
jonathon