Hi all,
Does anyone know an alternative to factor anlysis for non-normal distrbutions which explores factors or clusters on a set of 64 questionnaire items each with a 5-point Likert scale (363 respondents). I did read a recent post by Analysis factor who recommended latent class analysis (LCA) for catergorical data. However, I believe I can treat my data as interval* so would LCA be appropriate or is there another alternative?
Any help appreciated
Sue
*Jaccard and Wan (1996: 4) summarize, "for many statistical tests, rather severe departures (from intervalness) do not seem to affect Type I and Type II errors dramatically." Jaccard, James and Choi K. Wan (1996). LISREL approaches to interaction effects in multiple regression. Thousand Oaks, CA: Sage Publications. "
Does anyone know an alternative to factor anlysis for non-normal distrbutions which explores factors or clusters on a set of 64 questionnaire items each with a 5-point Likert scale (363 respondents). I did read a recent post by Analysis factor who recommended latent class analysis (LCA) for catergorical data. However, I believe I can treat my data as interval* so would LCA be appropriate or is there another alternative?
Any help appreciated
Sue
*Jaccard and Wan (1996: 4) summarize, "for many statistical tests, rather severe departures (from intervalness) do not seem to affect Type I and Type II errors dramatically." Jaccard, James and Choi K. Wan (1996). LISREL approaches to interaction effects in multiple regression. Thousand Oaks, CA: Sage Publications. "