[R] ezAnova difficulties
p@i@di@i m@iii@g oii trusti@d@t@@de
p@i@di@i m@iii@g oii trusti@d@t@@de
Wed Jun 12 11:56:27 CEST 2019
Hello,
I am using ezAnova for the first time and I am a bit lost.
My data "epindata" looks like this:
studno faculty epin smoker
1 1 6 2
2 2 16 1
3 2 18 2
4 2 24 1
5 3 15 2
6 2 21 2
. . . .
. . . .
"studno" ist the number of the observed probant (factor), "faculty" is
the subject area (1=sciene, 2=philosophy, ..) (factor), "epin" is
the degree of psychological stability (integer), "smoker" means 1=
yes, 2= no (factor).
The question I want to answer is if smoking and the faculty are
related with the probants psychological stability.
So what I want to do is a two way independent (!) ANOVA.
Unfortunaly all the examples I found were about data with repeated
measure and therefore for dependent variables.
I thought my ANOVA should work like this:
ezANOVA(data=epindata, wid = studno, dv= epin, between= c(faculty,smoker))
It worked but I get this warning which I don't understand:
"Warnung: You have removed one or more Ss from the analysis.
Refactoring "studno" for ANOVA.
Warnung: Data is unbalanced (unequal N per group). Make sure you
specified a well-considered value for the type argument to ezANOVA().
Coefficient covariances computed by hccm()"
So I do have some questions
1.)
I don't understand the warning . There is no missing value and so the
groups are equaly long.
And I don't get the "Refactoring" part or what " You have removed one
or more Ss" means.
2)
Did I get it right that as my variables are independent they both
belong to "between" , between= c(faculty,smoker)?
I would be really nice if somebody could help me!
Thanks in advance!
Claudia
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