Robust Method for Testing the Significance of Bivariate Correlation of Ordinal Data

Odimientimi D. Agbedeyi, Amechi H Igweze


The Tau’s statistics were introduced to solve the problems of tied data but its effect on shape of table cannot be ascertained. This study compares the non parametric approaches for testing the significance of bivariate correlation for ordinal data based on table shape (square and rectangular table). The bootstrap method was used to compare the magnitude of the correlation values and the associated standard error of the values of  tau’s -b, c and Gamma over a square and rectangular table. The Gamma was found to be the most robust statistic for computing the correlation of ordinal data

Keywords: Tau statistics, Gamma, ordinal correlation, Bivariate correlation

Full Text: PDF
Download the IISTE publication guideline!

To list your conference here. Please contact the administrator of this platform.

Paper submission email:

ISSN (Paper)2224-5804 ISSN (Online)2225-0522

Please add our address "" into your email contact list.

This journal follows ISO 9001 management standard and licensed under a Creative Commons Attribution 3.0 License.

Copyright ©