Dear all, I'm a newbie to R an would like to calculate McDonald's Omega. I installed the packages psych, GPArotation and used the suggested syntax omega(m,nfactors=3,fm="minres",...). Up to this point, it works. Nevertheless, I read that omega-h "is not meaningful for a 1-factor solution". What I'll have to do, if I would like to analyze the reliability of one subscale consisting of e.g. three items? I specify "nfactors=1", because I have one group factor and analyse omega_t instead of omega_h? Is this right? My question might sound stupid, but I'm confused. I would appreciate if someone can give me advice. Thank you. -- View this message in context: http://r.789695.n4.nabble.com/Calculate-McDonald-s-Omega-tp4673422.html Sent from the R help mailing list archive at Nabble.com.