Date: Mon, 31 Jul 2006 18:45:47 -0400
Reply-To: "Dogan, Enis" <email@example.com>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: "Dogan, Enis" <firstname.lastname@example.org>
Subject: factor analyzing the Tetrachoric correlations
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I am factor analyzing a set of 42 dichotomously scored test items (in
order to understand test dimensionality).
I calculated the Tetrachoric correlations (I can share the syntax if
anyone's interested); so my input file is a correlation matrix. My
Is there a particular type of rotation that works "better" with this
type of data? Or the same good-old rules apply here too?