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Applied Multiple Regression/Correlation Analysis for the Behavioral Sciences, 3rd Edition by Leona S. Aiken, Stephen G. West, Patricia Cohen, Jacob Cohen

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2

Bivariate Correlation and Regression

One of the most general meanings of the concept of a relationship between a pair of variables is that knowledge with regard to one of the variables carries information about the other. Information about the height of a child in elementary school has implications for the probable age of the child, and information about the occupation of an adult can lead to more accurate guesses about her income level than could be made in the absence of that information.

2.1 TABULAR AND GRAPHIC REPRESENTATIONS OF RELATIONSHIPS

Whenever data have been gathered on two quantitative variables for a set of subjects or other units, the relationship between the variables may be displayed graphically by means of a scatterplot.

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