CFA when measures have different scales PreviousNext
Mplus Discussion > Confirmatory Factor Analysis >
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 GradStudent posted on Sunday, February 06, 2011 - 8:01 pm
Hi!

I have 2 measures -- one of anxiety (scored 0 or 1), and one for depression (scored 0, 1, 0r 2).

I would like to test a theory called the tripartite model of anxiety and depression whereby there are 3 factors underlying these constructs.

Given that one measure is score (0, 1) and the other is scored 0, 1, 2, can I pool the items from the two measures and load them on the respective factors as described in the literature? Or do I need to use a specialized technique given that the two measures have different scoring?

Thank you!
 Linda K. Muthen posted on Monday, February 07, 2011 - 9:26 am
You can use the two items as factor indicators but I would not sum them. I am unclear if this is what you are asking.
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