Date:         Tue, 19 Mar 2002 08:30:32 -0500
Reply-To:     Christian Bautista <cbautista@namrid.sld.pe>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Christian Bautista <cbautista@namrid.sld.pe>
Subject:      Trend analysis
Content-Type: text/plain

Hi list,

I would like to evaluate trend with this information:

                  Sea level             High level
                        Positive Negative       Positive Negative
Category 1      38      2               32      3
Category 2      37      3               38      0
Category 3      35      5               28      9

I want to evaluate if trend for sea level is different of high level.

What kind of test I must apply? Can I do this using SPSS or other
statistical package?

I have normally used linear-by-linear-association chi-square to test trend
for one group but in this case I have two groups.

Thanks for any advice,

/Christian,