User talk:Richiemorrisroe

R Programming Wikibook
Hello,

I've seen your contribution on the R Programming wikibooks. I've been the major contributor to that book and I'm happy to welcome new contributors on that project. I'm not a specialist in Factor Analysis, PCA, MCA or CA. Maybe it was an error to do only one page for all these techniques. It may be better to have one page for Factor Analysis, one page for PCA, one page for CA and MCA and finally one page for SEM. I would be happy to have your opinion on that topic. Also, I think that we should only write about how to perform each technique using R but we should not explain the technique itself. If you want to discuss about Factor Analysis in general, I guess it would be better to do it on the wikipedia page (factor analysis). For instance, when you write "Factor Analysis is a difficult procedure to use properly, and is often misapplied in the psychological literature. One of the major issues in FA (and PCA) is the number of factors to extract from the data. Incorrect numbers of factors can cause difficulties with the interpretation and analysis of the data." I think that this should not be included in that page.

PAC2 (discuss • contribs) 11:38, 31 March 2011 (UTC)

Thats no problem, i dont know how much time i can devote, but i can definitely help with psychometrics, and would be glad to.

I agree that the different techniques should be split.

I also agree in principle that we should not talk too much about the nature of the techniques. However, part of using FA and PCA is selecting the number of factors, and so a sentence or two are probably needed to give background. Looking forward to working with you.

Richiemorrisroe (discuss • contribs) 15:43, 31 March 2011 (UTC)

I agree with you. A few sentences may be useful. Even some maths could also be added for clarification. Cheers

PAC2 (discuss • contribs) 08:16, 2 April 2011 (UTC)