CFA of a two-dimensional model PreviousNext
Mplus Discussion > Confirmatory Factor Analysis >
 Tanja Gabriele Baudson posted on Tuesday, July 29, 2014 - 8:26 am
Hi there,

I have developed a model comprising two dimensions of aggression: (1) two contexts, real life and cyberspace; and (2) three forms, verbal, physical, and indirect, resulting in six cells, which comprise between 1 and 8 items.

The fit of the model including all five factors is better than the one taking into account only contexts or forms, respectively, which is a good thing. However, I have two questions:

1) Is it okay at all to use items as indicators of more than one dimension (here: context and form)?
2) Is there a problem if one of the six cells has only one item? (All factors are represented by five and more items, though.)

 Bengt O. Muthen posted on Tuesday, July 29, 2014 - 4:42 pm
1) Yes

2) No. It is the number of items per factor that is key importance. Of course the way you investigate the cell represented by just one item determines whether or not a single item is sufficient.
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