Re: Three-Way Anova Post Hoc Comparisons

Posted by Beckstead, Jason on Jan 13, 2011; 8:12pm
URL: http://spssx-discussion.165.s1.nabble.com/Three-Way-Anova-Post-Hoc-Comparisons-tp3336188p3340386.html

If you know the MANOVA procedure, I believe that it will alow you to specify everything you need.
Below is syntax for class example for 3-way design that should be helpful

TITLE 3-WAY EXAMPLE; SEE MAXWELL & DELANEY PP.397-398.
DATA LIST FREE /1 VALUE SLFMTR ARGMNT SOURCE.
BEGIN DATA.
4 1 1 1
3 1 1 1
4 1 1 1
5 1 1 1
2 1 1 1
5 1 1 1
4 1 1 1
6 1 1 1
3 1 1 1
4 1 1 1
5 1 1 1
4 1 1 1
4 1 1 2
4 1 1 2
2 1 1 2
3 1 1 2
5 1 1 2
3 1 1 2
2 1 1 2
3 1 1 2
4 1 1 2
3 1 1 2
2 1 1 2
4 1 1 2
3 1 2 1
5 1 2 1
3 1 2 1
2 1 2 1
6 1 2 1
4 1 2 1
4 1 2 1
3 1 2 1
5 1 2 1
3 1 2 1
2 1 2 1
3 1 2 1
5 1 2 2
5 1 2 2
7 1 2 2
5 1 2 2
6 1 2 2
4 1 2 2
3 1 2 2
5 1 2 2
6 1 2 2
7 1 2 2
7 1 2 2
6 1 2 2
3 2 1 1
5 2 1 1
5 2 1 1
4 2 1 1
3 2 1 1
2 2 1 1
1 2 1 1
5 2 1 1
3 2 1 1
4 2 1 1
3 2 1 1
4 2 1 1
5 2 1 2
4 2 1 2
3 2 1 2
2 2 1 2
4 2 1 2
6 2 1 2
2 2 1 2
4 2 1 2
4 2 1 2
3 2 1 2
4 2 1 2
3 2 1 2
5 2 2 1
6 2 2 1
4 2 2 1
7 2 2 1
6 2 2 1
7 2 2 1
5 2 2 1
6 2 2 1
4 2 2 1
6 2 2 1
7 2 2 1
5 2 2 1
6 2 2 2
4 2 2 2
4 2 2 2
2 2 2 2
4 2 2 2
5 2 2 2
4 2 2 2
3 2 2 2
4 2 2 2
2 2 2 2
3 2 2 2
4 2 2 2
END DATA.
VALUE LABEL SLFMTR 1'HI Slf-M' 2'LO Slf-M'
           /ARGMNT 1'STRONG' 2'WEAK'
           /SOURCE 1'EXPERT' 2'ATTRACTV'.

GRAPH/LINE(MULTIPLE)MEAN(VALUE) BY ARGMNT BY SOURCE/INTERVAL SE(1).
GRAPH/LINE(MULTIPLE)MEAN(VALUE) BY SLFMTR BY SOURCE/INTERVAL SE(1).
GRAPH/LINE(MULTIPLE)MEAN(VALUE) BY ARGMNT BY SLFMTR/INTERVAL SE(1).
GRAPH/LINE(MULTIPLE)MEAN(VALUE) BY ARGMNT BY SOURCE/PANEL COLVAR=SLFMTR
 /INTERVAL SE(1).

*QUESTION B: omnibus factorial, see SOURCE x ARGMNT interaction.
MANOVA VALUE BY SOURCE(1,2) ARGMNT(1,2) SLFMTR(1,2)
 /PRINT=CELLINFO(MEANS)
 /OMEANS=TABLES (SOURCE ARGMNT SLFMTR
  SOURCE*ARGMNT SOURCE*SLFMTR SLFMTR*ARGMNT)
 /DESIGN.

*QUESTIONS C & D: simple interactions (SxA) @ EACH LEVEL OF SLFMTR.
MANOVA VALUE BY SOURCE(1,2) ARGMNT(1,2) SLFMTR(1,2)
 /DESIGN=SLFMTR SOURCE ARGMNT
         SLFMTR*SOURCE SLFMTR*ARGMNT
         SOURCE*ARGMNT WITHIN SLFMTR(1)
         SOURCE*ARGMNT WITHIN SLFMTR(2).

*QUESTIONS F thru I: simiple-simple main effects of ARGMNT.
MANOVA VALUE BY SOURCE(1,2) ARGMNT(1,2) SLFMTR(1,2)
 /DESIGN=SLFMTR SOURCE SLFMTR*SOURCE
         ARGMNT WITHIN SLFMTR(1) WITHIN SOURCE(1)
         ARGMNT WITHIN SLFMTR(1) WITHIN SOURCE(2)
         ARGMNT WITHIN SLFMTR(2) WITHIN SOURCE(1)
         ARGMNT WITHIN SLFMTR(2) WITHIN SOURCE(2).


_____________________________________________________________
 Jason W. Beckstead, Ph.D.
  Associate Professor/Quantitative Methodologist
  University of South Florida College of Nursing
  12901 Bruce B. Downs Blvd., MDC22, Tampa, FL 33612, USA
  Statistical Editor, International Journal of Nursing Studies
  phone: [phone]  fax: [phone]
  personal website:  http://personal.health.usf.edu/jbeckste/
  International Journal of Nursing Studies  http://www.elsevier.com/ijns



-----Original Message-----
From: SPSSX(r) Discussion [mailto:[hidden email]] On Behalf Of komakino0
Sent: Tuesday, January 11, 2011 5:19 AM
To: [hidden email]
Subject: Three-Way Anova Post Hoc Comparisons

In my data I have three  independent variables; intervention (intervention vs
control group), gender (male vs female) and country (country1, country2,
country3). I have a three way interaction and I don't know how to conduct
post hoc analyses. Basicly first I have to create a intervention-control
difference. Then, I have to do this for gender specific. Afterwards I have
to create a country specific difference for each gender specific
intervention-control difference.
The most advanced post hoc comparison I have seen is 2- way mixed design
until now. SO I don't know what to do with this 3-way post-hoc. I appreciate
even a tiny bit of help:) Thank you very much.



intervention control difference - intervention control difference
        for males                                          for females
       @ country -1                                    @ country-2
--
View this message in context: http://spssx-discussion.1045642.n5.nabble.com/Three-Way-Anova-Post-Hoc-Comparisons-tp3336188p3336188.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

=====================
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