STATISTICAL RANK METHODS FOR ORDINAL CATEGORICAL DATA

Abstract

The aim of this paper is to present a new rank. method for analysing ordinal scale problems, and to give some of its basic properties. The method is suitable for the assessment of validity and reliability of health measurement instruments. We will be able to separate systematic and random differences between judges or scales and also. in a suitable way. measure the size of these two types of differences. Some methods for estimating systematic differences between raters will be given. The model is illustrated in a worked example.