Abstract #300072

This is the preliminary program for the 2003 Joint Statistical Meetings in San Francisco, California. Currently included in this program is the "technical" program, schedule of invited, topic contributed, regular contributed and poster sessions; Continuing Education courses (August 2-5, 2003); and Committee and Business Meetings. This on-line program will be updated frequently to reflect the most current revisions.

To View the Program:
You may choose to view all activities of the program or just parts of it at any one time. All activities are arranged by date and time.

The views expressed here are those of the individual authors
and not necessarily those of the ASA or its board, officers, or staff.

Back to main JSM 2003 Program page
JSM 2003 Abstract #300072
Activity Number: 468
Type: Contributed
Date/Time: Thursday, August 7, 2003 : 10:30 AM to 12:20 PM
Sponsor: Section on Nonparametric Statistics
Abstract - #300072
Title: A New Nonparametric Test for the Ordered Alternative Problem
Author(s): Jeffrey Terpstra*+
Companies: North Dakota State University
Address: PO Box 5575, Fargo, ND, 58105-5575,
Keywords: Asymptotic distribution ; Jonckheere-Terpstra test ; Ordered alternative ; Nonparametric test ; Power comparisons
Abstract:

This paper proposes a new nonparametric test for detecting nondecreasing ordered alternatives. The exact mean and variance of the null distribution are derived and it is shown that this distribution is asymptotically normal. The test is designed to help alleviate some of the problems that existing tests have with high powers when the assumed a priori ordering among the parameters is incorrect. For example, small sample and asymptotic power comparisons indicate that the proposed test has higher powers than the general alternative Kruskal-Wallis test when the assumed ordering is correct, and lower powers than existing nonparametric tests for ordered alternatives when the location parameters differ, but do not follow a nondecreasing pattern. Some actual data examples are also discussed.

  • The address information is for the authors that have a + after their name.
  • Authors who are presenting talks have a * after their name.

Back to the full JSM 2003 program

JSM 2003 For information, contact meetings@amstat.org or phone (703) 684-1221. If you have questions about the Continuing Education program, please contact the Education Department.
Revised March 2003