Levene's test of homogeneity of variances in ANCOVA

Discuss the jamovi platform, possible improvements, etc.
Post Reply
thecuriouslamp
Posts: 2
Joined: Tue Feb 25, 2020 8:44 am

Levene's test of homogeneity of variances in ANCOVA

Post by thecuriouslamp »

Hello,

I was doing a univariate ANCOVA with the pre-test results as the covariate and the post-test results as the DV.
I ran the Levene's test of homogeneity of variance and somehow to my surprise, the test did not take the covariate into account - the results were just identical to running an ANOVA with no covariates specified in the model.

Has anyone else figured out similar problems and would the development team consider solving this in the next release?

Thank you very much!
User avatar
jonathon
Posts: 2613
Joined: Fri Jan 27, 2017 10:04 am

Re: Levene's test of homogeneity of variances in ANCOVA

Post by jonathon »

hi,

can you attach a .omv file demonstrating this?

with thanks
User avatar
jonathon
Posts: 2613
Joined: Fri Jan 27, 2017 10:04 am

Re: Levene's test of homogeneity of variances in ANCOVA

Post by jonathon »

it's ok, i've taken a look, we'll push out a fix in the next release.

thanks for reporting.

jonathon
thecuriouslamp
Posts: 2
Joined: Tue Feb 25, 2020 8:44 am

Re: Levene's test of homogeneity of variances in ANCOVA

Post by thecuriouslamp »

Thank you very much!
ard
Posts: 2
Joined: Wed Feb 24, 2021 4:30 pm

Re: Levene's test of homogeneity of variances in ANCOVA

Post by ard »

I had a similar issue when running my ANCOVA where an error message appeared saying that they could not find my pre-test variable. Is that part of a bug that will be fixed in the next release? (Also, how often are there releases just to manage my expectations).
User avatar
jonathon
Posts: 2613
Joined: Fri Jan 27, 2017 10:04 am

Re: Levene's test of homogeneity of variances in ANCOVA

Post by jonathon »

hi,

you may notice this thread is over a year old. can you start a new thread?

with thanks
Post Reply