JSM 2003 Online Program

Abstract #300589

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

Activity Number:	129
Type:	Contributed
Date/Time:	Monday, August 4, 2003 : 10:30 AM to 12:20 PM
Sponsor:	Biometrics Section
Abstract - #300589
Title:	Estimating Diagnostic Test Parameters from Longitudinal Data without a Gold Standard
Author(s):	Huiyan Zhao*+ and Michael J. Daniels
Companies:	Iowa State University and University of Florida
Address:	15 Schilletter Village Apt. 15A, Ames, IA, 50010-8715,
Keywords:	Bayesian ; diagnostic tests ; gold standard ; hierarchical
Abstract:	We propose a Bayesian hierarchical model to estimate diagnostic test parameters and prevalences from test data collected at two time points without a gold standard. We consider both conditionally independent and dependent models. A simple Gibbs sampling algorithm is constructed to sample from the posterior distribution of the model parameters. Several statistics to compare models are proposed. We apply this model to two diagnostic tests for salmonella in swine.

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