Date: Thu, 27 Oct 2005 15:08:07 -0400
Reply-To: "Caldwell, Gregory" <email@example.com>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: "Caldwell, Gregory" <firstname.lastname@example.org>
Subject: chi square test of survey responses with empty categories
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Bit of a question here. Have conducted two cohort surveys and am now
assessing if there are significant differences between the sets of
I have come to a survey question whose response choices were 'yes', 'no'
and 'not sure'. In the first cohort survey, responses were received for
all three categories. In the second cohort survey, responses were only
received in the 'no' category. In doing a chi square test, the GUI does
not accept a '0' value for the other two categories. How should I
address this? Am I doing something incorrectly? Or missing something?
Thanks very much for your assistance.
New York City