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Trying to run a ind t-test, says 'at least on of the groups is empty. HELP!?

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Krystal89

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Nov 2, 2009, 8:22:13 PM11/2/09
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Im trying to write a practical report for uni. In doing so I am
required to test the difference between males and females in scores of
3 different tests. One of the tests works, but the other 2 dont,
saying that the group is missing. Needs to be finished today as I dont
have SPSS at home. Please help me, this is the first time Ive used
SPSS.

Thanks guys :)

Krystal89

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Nov 2, 2009, 8:49:51 PM11/2/09
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Hopefully this will help, This is the error message its giving me.


Notes
Output Created 03-Nov-2009 12:07:52
Comments
Input Data \\uofausers0\users0\a1160560\Desktop\FHLD friendship
prac.sav
Active Dataset DataSet1
Filter <none>
Weight <none>
Split File <none>
N of Rows in Working Data File 614
Missing Value Handling Definition of Missing User defined missing
values are treated as missing.
Cases Used Statistics for each analysis are based on the cases with
no missing or out-of-range data for any variable in the analysis.
Syntax T-TEST GROUPS=relagg(0 1)
/MISSING=ANALYSIS
/VARIABLES=sex
/CRITERIA=CI(.95).

Resources Processor Time 0:00:00.000
Elapsed Time 0:00:00.000

Warnings
The Independent Samples table is not produced.

Group Statistics
relagg N Mean Std. Deviation Std. Error Mean
sex .00 0a . . .
1.00 0a . . .
a. t cannot be computed because at least one of the groups is empty.

Bruce Weaver

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Nov 2, 2009, 8:56:42 PM11/2/09
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Krystal89 wrote:
> On Nov 3, 11:22 am, Krystal89 <krystal.lan...@gmail.com> wrote:
>> Im trying to write a practical report for uni. In doing so I am
>> required to test the difference between males and females in scores of
>> 3 different tests. One of the tests works, but the other 2 dont,
>> saying that the group is missing. Needs to be finished today as I dont
>> have SPSS at home. Please help me, this is the first time Ive used
>> SPSS.
>>
>> Thanks guys :)
>
> Hopefully this will help, This is the error message its giving me.

--- snip ---

> Syntax T-TEST GROUPS=relagg(0 1)
> /MISSING=ANALYSIS
> /VARIABLES=sex
> /CRITERIA=CI(.95).

--- snip ---

You've got the variables in the wrong places--i.e., you're
treating RELAGG as the group variable and SEX as the dependent
variable.

--
Bruce Weaver
bwe...@lakeheadu.ca
http://sites.google.com/a/lakeheadu.ca/bweaver/
"When all else fails, RTFM."

Krystal89

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Nov 2, 2009, 9:04:25 PM11/2/09
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On Nov 3, 11:56 am, Bruce Weaver <bwea...@lakeheadu.ca> wrote:
> Krystal89 wrote:
> > On Nov 3, 11:22 am, Krystal89 <krystal.lan...@gmail.com> wrote:
> >> Im trying to write a practical report for uni. In doing so I am
> >> required to test the difference between males and females in scores of
> >> 3 different tests. One of the tests works, but the other 2 dont,
> >> saying that the group is missing. Needs to be finished today as I dont
> >> have SPSS at home. Please help me, this is the first time Ive used
> >> SPSS.
>
> >> Thanks guys :)
>
> > Hopefully this will help, This is the error message its giving me.
>
> --- snip ---
>
> > Syntax     T-TEST GROUPS=relagg(0 1)
> >   /MISSING=ANALYSIS
> >   /VARIABLES=sex
> >   /CRITERIA=CI(.95).
>
> --- snip ---
>
> You've got the variables in the wrong places--i.e., you're
> treating RELAGG as the group variable and SEX as the dependent
> variable.
>
> --
> Bruce Weaver
> bwea...@lakeheadu.cahttp://sites.google.com/a/lakeheadu.ca/bweaver/

> "When all else fails, RTFM."

THANKYOU!!!

Lucky Im blonde, otherwise I'd look really bumb at this point :)

Seriously though, thanks...

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