Posted by
statisticsdoc on
Dec 31, 2011; 1:52pm
URL: http://spssx-discussion.165.s1.nabble.com/how-to-test-inferiority-in-SPSS-tp5109102p5112186.html
SPSS does not contain a module specifically for testing non-inferiority.
The statistics that you need to carry out these computations by hand can be
obtained from the descriptive procedure (for interval data) or from
frequencies (for categorical data). The logic of the procedure requires
that you establish a range of differences (or ratios) in treatment outcomes
that is clinically insignificant - that is a clinical issue rather than a
statistical one. Having established a range of indifference, you will need
to compute the confidence interval for the treatment effect in your data.
To support a claim of non-inferiority, the confidence interval must fall
within the specified range of clinical indifference.
You may find the following book helpful. It provides a comprehensive
treatment of the subject in understandable terms.
Stefan Wellek (2010). Testing statistical hypotheses of equivalence, 2nd
Edition. Chapman and Hall.
Best,
Stephen Brand
www.StatisticsDoc.com
-----Original Message-----
From: SPSSX(r) Discussion [mailto:
[hidden email]] On Behalf Of
Lunfrankie
Sent: Thursday, December 29, 2011 9:40 PM
To:
[hidden email]
Subject: how to test inferiority in SPSS
I would like to test for non-inferiority in SPSS. Would anyone know how to
test non-inferiority in SPSS?
Do I need to buy the expansion for SPSS for it?
Please kindly tell me how to do so, thank you very much.
--
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