# Concordant pair

Talk0*34,135*pages on

this wiki

Revision as of 07:49, January 26, 2007 by Dr Joe Kiff (Talk | contribs)

Assessment |
Biopsychology |
Comparative |
Cognitive |
Developmental |
Language |
Individual differences |
Personality |
Philosophy |
Social |

Methods |
Statistics |
Clinical |
Educational |
Industrial |
Professional items |
World psychology |

**Statistics:**
Scientific method ·
Research methods ·
Experimental design ·
Undergraduate statistics courses ·
Statistical tests ·
Game theory ·
Decision theory

In statistics, a ** concordant pair** is a pair of a two-variable (bivariate) observation data-set **X**_{1},**Y**_{1}} and {**X**_{2},**Y**_{2}}, where:

Correspondingly, a ** discordant pair** is a pair, as defined above, where

and the sign function, often represented as **sgn**, is defined as:

## See also

## References

- Kendall rank correlation.
- Kendall, M. (1948)
*Rank Correlation Methods*, Charles Griffin & Company Limited - Kendall, M. (1938) "A New Measure of Rank Correlation", Biometrica, 30, 81-89.

## External links

{{enWP|Concordant pair}