This page will provide an introduction to understanding and using library call numbers. Each book in the library has a unique call number. A call number is like an address: it tells us where the book is located in the library.
Definition of Correlation: Correlation is a statistical technique that is used to measure and describe the STRENGTH and DIRECTION of the relationship between two variables. Correlation requires two scores from the SAME individuals.
correlation. n. 1. a mutual or reciprocal relationship between two or more things. 2. the act or process of correlating or the state of being correlated. 3. (Statistics) statistics the extent of correspondence between the ordering of two variables. Correlation is positive or direct when two variables move in the same direction and negative or inverse when they move in opposite directions.