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PSPP-BUG: [bug #26936] T-TEST reports 2-p instead of p

From: Mike Griffiths
Subject: PSPP-BUG: [bug #26936] T-TEST reports 2-p instead of p
Date: Wed, 15 Jul 2009 16:07:25 +0000
User-agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB6; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

Follow-up Comment #5, bug #26936 (project pspp):


Thanks for your reply.  I think there are a couple of misunderstandings

1. If you have a choice between results assuming equal variances and
non-equal variances, you must be running an independent-samples test.  My
point related to a paired-samples test (Analyse - Compare Means - Paired
Samples T test).
2. Neither of my data sets had only one member. (For a paired-samples test
they have to be of equal size anyway.)  In column A the values, reading
downwards, were 11, 1 and 1.  In column B the values, reading downwards, were
2, 1 and 1.
3. I am not using syntax, I am using the drop-down menu.
4. In view of all the above I assume you don't need a different example, but
I can willingly provide others if needed.
5. I am running PSPP (psppire.exe) 0.7.2 under Windows XP.

Hope this helps,


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