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April 25

Robert_Sahakyan → sebastiaan

Hi Sebastian,

I was hoping to get some help from you with regards to the Sound_Recording plugin for OpenSesame

https://forum.cogsci.nl/discussion/6017/help-needed-with-sound-recording-output-file - this is the open question that we have. Essentially the audio files get overwritten between trials, even when it has been selected to 'Append suffix to filename'.

I would be very thankful if you shed any light on this issue?

Thanks,

Robert.

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April 22

marthapapa

Hallo,

Thank you very much for giving us the chance to run and understand statistics with JASP!

I have conducted a forced-choice test three times (pre-, middle-, final-) , in two different groups (control & test). I would like to examine the differences between them, but at the same time not to loose the repeated data.

So, I decided to run a REPEATED MEASURES ANCOVA, with middle and final tests as within-subjects factors, training as between-subjects factor and pre-test and age as covariates.

I conducted an independent t-test for the pre-test and saw that the control and the test groups differed significantly . Hence, I thought that I could eliminate the variance , by using pre-test-results as covariate.

However, the pre-test and the training are correlated, and I have red that one of the assumptions for running an ANCOVA is that IVs and Covariates should be independent .

Can I proceed with the analysis ? Or should I do something different ?

I found in the references, that one way to control for those interactions is the moderated regression. But I don’t know how to run this kind of analysis in JASP.

Thank you very much in advance !

April 22