I´m a little confused: I tried to calculate a bifactor solution and afterwards omega like in e.g. "The Rediscovery of Bifactor Measurement Models; Multivariate Behavioral Research, Volume 47, Issue 5, 2012" http://www.tandfonline.com/doi/abs/10.1080/00273171.2012.715555
Now some of the variables show negative loadings on the group factor.
To be honest I´m not sure about two things: 1) How to interpret these results? I mean on the general factor everything is fine, and these are only a few items... 2) How to calculate omega with this: Do you take the absolute values or do you leave the items out or...???
Any help would very much appreciated, best,
Pete
Now some of the variables show negative loadings on the group factor.
To be honest I´m not sure about two things: 1) How to interpret these results? I mean on the general factor everything is fine, and these are only a few items... 2) How to calculate omega with this: Do you take the absolute values or do you leave the items out or...???
Any help would very much appreciated, best,
Pete