coledavis

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• Thanks, EJ. I've only just started marketing, and the book has already been adopted by an English university.

  in New book for beginners Comment by coledavis September 2023
• Ah, I have just done some more reading. Really, ANCOVA shouldn't be used for Repeated Measures, requiring independent error terms. So, not really relevant. Sorry again.

  in JASP: DFs for ANCOVA with within-subjects design Comment by coledavis May 2016
• Perhaps you could send me what you deem to be a satisfactory data set which represents a repeated measures set for ANCOVA and a between-subjects data set which would be satisfactory for ANCOVA?

  in JASP: DFs for ANCOVA with within-subjects design Comment by coledavis May 2016
• No, the ThreeWayRepeatANOVA.csv is only there to show you the original data, which does as you say work on ANOVA. The information in this was converted into long format for the purposes of ANCOVA. If you try out the ANCOVA.csv data on JASP's ANCOVA …

  in JASP: DFs for ANCOVA with within-subjects design Comment by coledavis May 2016
• I've converted a repeated measures file to wide format, but keep getting a message from JASP ANCOVA that "Singular fit encountered; one or more predictor variables are a linear combination of other predictor variables". Temporarily, on ww…

  in JASP: DFs for ANCOVA with within-subjects design Comment by coledavis May 2016
• Looking from another point of view, there is a trend of people moving to JASP from SPSS, some of whom will want classical analyses only (although hopefully they'll start to see the benefit of Bayesian analyses as they get accustomed to JASP). I do s…

  in Separate Bayesian analyses? Comment by coledavis May 2016