1987•Journal of Statistical Computation and SimulationRequires access

The effect of withdrawal censoring on two-sample tests

David J. Groggel, Robert L. Schaefer, John H. Skillings

Abstract

A simulation study was performed to examine the effects of withdrawal censoring and fixed right censoring on the level of significance and power of two-sample tests. Statistics based on Gehan, logrank, and Peto-Prentice scores are used. It is demonstrated that the performance of these tests can be adversely affected by a high percenage of withdrawals and/or unequal sample sizes

About this research paper

What this paper is about

Why it matters

OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Censoring (clinical trials), Statistics, Mathematics, Sample size determination, Log-rank test, Sample (material), Econometrics, Statistical hypothesis testing