Date: Thu, 31 Jan 2008 09:38:05 -0700
Reply-To: ViAnn Beadle <vab88011@gmail.com>
Sender: "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From: ViAnn Beadle <vab88011@gmail.com>
Subject: Re: Means, averages
In-Reply-To: <200801311537.m0VFbeHh031361@linhost2.utic.net.ba>
Content-Type: text/plain; charset="iso-8859-2"
Assuming the responses in the groups are completely independent, get your
data into the shape of one response variable and one group variable--your
second layout. The recode the group variable into two groups:
Recode g (1=1)(2,3,4=2)into twogroups.
Use any of the univariate analysis of variance procedures such as ANOVA,
ONEWAY, UNIANOVA, t-TEST (since you only have 2 groups) to test your
hypothesis. All of these procedures will also provide the group means as
either default or optional output. You can find details in Help.
-----Original Message-----
From: Samir Omerovic [mailto:samir.omerovic@gfk.ba]
Sent: Thursday, January 31, 2008 8:50 AM
To: 'ViAnn Beadle'
Cc: SPSSX-L@LISTSERV.UGA.EDU
Subject: RE: Means, averages
Hi,
First of all I need to calculate that mean for all other groups, and then to
compare it with group1
(to test hypothesis that there is no difference between group1 and average
of all other groups.
Samir
Samir Omerovic
Researcher
[Vi sez:]
-----Original Message-----
What do you mean by compare? Do you mean to test the hypothesis that there
are no differences between groups, between group 1 and all other groups or
something else?
-----Original Message-----
From: SPSSX(r) Discussion [mailto:SPSSX-L@LISTSERV.UGA.EDU] On Behalf Of
Samir Omerovic
Sent: Thursday, January 31, 2008 3:40 AM
To: SPSSX-L@LISTSERV.UGA.EDU
Subject: Means, averages
Hi to all,
I have question about average values. I have data that looks like this:
V1 V2 V3 V4
1
3
5
3
3
1
3
4
5
4
5
1
4
4
5
4
2
2
2
These are answers on scale from 1-agree to 5-disagree to certain question.
Variables V1, V2, V3, V4
are basically different groups of respondents but all answers are to the
same question. It is the
same as this one:
Q G
1 1
3 1
5 1
3 1
3 1
1 2
3 2
4 2
5 2
4 2
5 3
1 3
4 3
4 3
5 4
4 4
2 4
2 4
2 4
Q stands for question and G stands for Group.
So now I need to compare means in following way: Group1 vs. average of all
other groups. How should
I calculate the average of all other groups? Is it simple as making them all
Group2 or should I pay
attention to some other details?
Hope I wrote it clear enough:)
Samir
Samir Omerovic
Researcher
___________________________
GfK BH d.o.o.
Skenderija 44
71 000 Sarajevo
Bosnia and Herzegovina
Phone +387 33 550 300
Fax +387 33 444 226
samir.omerovic@gfk.ba
www.gfk.ba
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