Re: Logistic Regression with Interactions Categorical DV

Posted by Ryan on May 06, 2014; 6:02pm
URL: http://spssx-discussion.165.s1.nabble.com/Logistic-Regression-with-Interactions-Categorical-DV-tp5725838p5725839.html

You could employ a random effects logistic regression via the procedure GENLINMIXED or a GEE logistic regression model via the procedure GENLIN. The syntax is fairly straightforward, and there are many examples if you search the archives:

http://listserv.uga.edu/cgi-bin/wa?S1=spssx-l

or read the manual.

Ryan

On Tue, May 6, 2014 at 1:30 PM, Arakashi <[hidden email]> wrote:

I have a 2 (group: patients, controls) between subject X 2 (Task 1, Task 2)
within subjects X 3 (Trial type 1, Trial type2 and Trial type3) within
subjects.  My DV is Accuracy (binary, yes or no).

My data is not normally distributed because accuracy is at ceiling, so I was
going to use logistic regression.
However, I cannot for the life of me figure out what to do with the Accuracy
data since it's categorical/binary.  I need to be able to look at the
interactions…

For the reaction time data, I used the following syntax to explore the main
effects and interactions (RT was for correct trials only):
MIXED Probe.RT WITH Condition Trial Group
/FIXED=Condition Trial Group Condition*Group Trial*Group Condition*Trial
Condition*Trial*Group | SSTYPE(3)
/METHOD=reml
/PRINT = SOLUTION TESTCOV
/RANDOM=INTERCEPT | SUBJECT(Subject)

If anyone could help me with the syntax for the Accuracy data, I'd be so so
grateful.



--
View this message in context: http://spssx-discussion.1045642.n5.nabble.com/Logistic-Regression-with-Interactions-Categorical-DV-tp5725838.html
Sent from the SPSSX Discussion mailing list archive at Nabble.com.

=====================
To manage your subscription to SPSSX-L, send a message to
[hidden email] (not to SPSSX-L), with no body text except the
command. To leave the list, send the command
SIGNOFF SPSSX-L
For a list of commands to manage subscriptions, send the command
INFO REFCARD