Programming the statistical procedures from SAS

Two-way MANOVA output interpretation

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Occasional Contributor
Posts: 8

Two-way MANOVA output interpretation

I'm having trouble interpreting SAS output for a two-way MANOVA test for a class assignment. There are 2 factors ("S" and "V") and 4 predictor variables (y1-y4). Here is the SAS code I wrote, which I'm pretty sure is accurate:

 

proc glm data=snapbean;
class S V;
model y1 y2 y3 y4 = S V S*V;
manova h=_all_ / printe printh;
run;

 

I have to test and comment on the main effects and interaction using all four MANOVA statistics.

 

The SAS output runs ANOVA on each predictor variable and I've omitted that output. The rest of the output are screenshots in the attached word document.

 

I believe that there are a couple of steps for this where one has to look first at some kind of correlation or interaction between the factors or something like that, but I could be wrong.  I'll admit that I had a hard time grasping two-way ANOVA so that's probably why I'm struggling with this.

 

Any help is appreciated.

 

Thanks

 

 

 

Respected Advisor
Posts: 3,000

Re: Two-way MANOVA output interpretation


 

rest of the output are screenshots in the attached word document.

 


Some of us won't open Microsoft Office documents as they can be a security risk. Just post your screen captures directly into your message.

 

I believe that there are a couple of steps for this where one has to look first at some kind of correlation or interaction between the factors or something like that, but I could be wrong. I'll admit that I had a hard time grasping two-way ANOVA so that's probably why I'm struggling with this.

 

No, there are no such steps. MANOVA will tell you about interactions and correlations, if they exist.

 

It sounds as if your problem is with understanding ANOVA, except that the rest of your message talks about interpreting MANOVA. Please ask specific questions. 

 

 

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Paige Miller
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