JSM 2004 - Toronto

Abstract #300720

This is the preliminary program for the 2004 Joint Statistical Meetings in Toronto, Canada. Currently included in this program is the "technical" program, schedule of invited, topic contributed, regular contributed and poster sessions; Continuing Education courses (August 7-10, 2004); 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 2004 Program page
Activity Number: 226
Type: Contributed
Date/Time: Tuesday, August 10, 2004 : 10:30 AM to 12:20 PM
Sponsor: Biometrics Section
Abstract - #300720
Title: Bias-corrected Maximum Likelihood and Double Extended quasi-likelihood Estimators of the Intraclass Correlation Parameter for Binary Data
Author(s): Krishna K. Saha*+
Companies: University of Windsor
Address: 401 Sunset Avenue, Windsor, ON, N9B 3P4, Canada
Keywords: bias-corrected maximum likelihood ; double extended quasi-likelihood ; intraclass correlation parameter ; over/underdispersion ; toxicological data
Abstract:

We derive expressions for Bias-corrected maximum likelihood (BCML) estimator of the intraclass correlation parameter for data in the form of proportions. A comparison, by simulation, of the BCML estimator, in terms of bias and efficiency, is conducted with two recently proposed estimators, namely, the double extended quasi-likelihood (DEQL) estimator proposed by Lee (2003) and the estimator Q2 proposed by Paul, Saha, and Balasooriya (2003), which is based on optimal quadratic estimating equations of Crowder (1987). The BCML estimator has superior bias and efficiency properties in most instances. Analyses of a set of toxicological data from Paul (1982) and a set of medical data pertaining to chromosomal abnormalities among survivors of the atomic bomb in Hiroshima from Otake and Prentice (1984) show in general much improvement in standard errors of the BCML estimates over other estimates.

  • 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 2004 program

JSM 2004 For information, contact jsm@amstat.org or phone (888) 231-3473. If you have questions about the Continuing Education program, please contact the Education Department.
Revised March 2004