| Date: | Thu, 15 Jun 2006 13:25:40 -0400 |
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| Reply-To: | mah-j@statworks.com |
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| Sender: | "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU> |
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| From: | "mah-j@statworks.com" <msoobader@VERIZON.NET> |
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| Subject: | Re: significant estimates GLIMMIX? |
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| In-Reply-To: | <20060615170532.5098.qmail@webmail53.rediffmail.com> |
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| Content-type: | text/plain; charset=iso-8859-1 |
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Hi there,
I'm unclear about how to choose whether a parameter in GLIMMIX is
significant or not. For a given parameter:
The fixed effect estimate is 0.6424 and the standard error is 0.8033 and the
Pr> |t|=0.4239.
If I convert the estimate to the odds ratio- I get Odds ratio 1.9010,
confidence interval 0.3937 - 9.1785.
Using the actual estimate and Pr> |t| ( t-test for the hypothesis that the
estimate is zero)- I would conclude that this parameter is not significant
and can be dropped from the model.
However, if I use the Odds ratios and confidence intervals- (even though the
CI is very wide)- it appears that the parameter is significant and should be
kept in the model.
Any advice on how to determine whether I should keep this parameter in the
model or not will be greatly appreciated.
Thank you,
Mah-J
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