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Re: re: st: How do you run the Waller-Duncan test in STATA?


From   Joseph Coveney <jcoveney@bigplanet.com>
To   Statalist <statalist@hsphsun2.harvard.edu>
Subject   Re: re: st: How do you run the Waller-Duncan test in STATA?
Date   Wed, 09 Nov 2005 17:58:26 +0900

David Airey wrote (excerpted):

Anyone have the reference to the "Waller-Duncan" test? Is this the
multiple range test?

--------------------------------------------------------------------------------

Citations copied out of SAS user's manuals on the Internet:

Duncan, D.B. (1975), "t Tests and Intervals for Comparisons Suggested by the
Data," Biometrics, 31, 339 -359.

Waller, R.A. and Duncan, D.B. (1969), "A Bayes Rule for the Symmetric
Multiple Comparison Problem," Journal of the American Statistical
Association, 64, 1484 -1499, and (1972) "Corrigenda," 67, 253 -255.

Waller, R.A. and Duncan, D.B. (1972), "Corrigenda," Journal of the American
Statistical Association, 67, 253 -255.

Waller, R.A. and Kemp, K.E. (1976), "Computations of Bayesian t-Values for
Multiple Comparisons," Journal of Statistical Computation and Simulation,
75, 169 -172.

Other references (at-hand):

P. H. Westfall, R. D. Tobias, D. Rom, R. D. Wolfinger & Y. Hochberg, Chapter
13--Bayesian multiple comparisons and multiple tests. in _Multiple
Comparisions and Multiple Tests Using the SAS System_ (Cary, North Carolina:
SAS Institute, 1999).

R. G. D. Steel & J. H. Torrie [posthumous], Section 8.10--Waller-Duncan's
Bayesian k-ratio t Test. in _Principles and Procedures of Statistics: A
Biometrical Approach_  Second Edition. (Tokyo: McGraw-Hill Kogakusha, 1980),
pp. 190-91.

This latter cites the following in addition:

D. O. Dixon & D. B. Duncan, Minimum Bayes risk t-intervals for multiple
comparisons.  _J Amer Stat Assoc_ 70:822-31, 1975.

As you can infer from the titles, the Waller-Duncan test is not Duncan's New
Multiple Range Test.

Joseph Coveney

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