Hello
I have created a rubric with 9 criteria for the evaluation of presentations, which I would now like to validate.
I want to do a factor analysis for this.
What data do I have?
All 66 people rated 4 presentations each. The 4 presentations are the same for all 66 people.
Can I do a single EFA or CFA with all 4 presentations?
I am not sure if this is really a repeated measures design. Experience has shown that the factor structure also depends on the presentation being assessed. Therefore, if at all possible, I would like to do a single factor analysis where I integrate the ratings from all 4 presentations.
Would be great if someone could help.
Thank you very much for your answers, which are very helpful.
However, I still see a problem with your answers. Isn't it the case that my sample (66 raters assessing 4 presentations each) is far too small to do an MFA, CFA or multi-group CFA?
Or do you see another way to validate the rubric in some way with my small design?
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