Date:         Sun, 15 Jul 2007 17:13:33 +0100
Reply-To:     N Knight <ventripotent@gmail.com>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         N Knight <ventripotent@gmail.com>
Subject:      Generating a matrix of nominal correlation values in Crosstabs
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Dear all,

When I need to run a factor analysis on dichotomous variables I
generally create a Kendall's tau correlation matrix, copy that into
syntax, and run the factor analysis from matrix input.

I am now dealing with a set of 7 variables that are quasi-ordinal, but
which for the sake of honest statistical procedure I want to treat as
nominal.

Measures of association for nominal variables, such as Goodman-Kruskal's
Lambda and Cramer's V, are found under Crosstabs, rather than under
Correlate. So far, I have not found a way to generate matrix output from
Crosstabs, and I'm afraid that constructing a matrix from the piecemeal
output of Crosstabs will make it more likely for mistakes to creep in.

Does anyone know if it is possible to create a matrix of Lambda and/or
Cramer's V correlation values?

All the best,

Nicola Knight

--
Nicola Knight (Mr)

PhD candidate, Psychology/Anthropology/Culture & Cognition, University of Michigan
Visiting research associate, Department of Anthropology, LSE

http://sitemaker.umich.edu/nicola.knight