GATE (Graduate Aptitude Test in Engineering) Psychology Research Methods and Statistics-Regression Study Material (Page 1 of 1)

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Measuring Association Among Attributes: Regression Analysis

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Regression Analysis

Regression analysis determines regression equation, which can predict or estimate a score of one variable if the other is known. If two variables are correlated, one variable can be predicted based on the other. It was first used by Francis Galton in 1877 to analyze relation between the height of fathers and sons. Regression analysis also provides a measure of errors involved in this estimation process. Linear correlation predi…

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Measuring Association Among Attributes: Multiple Regression

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Multiple Regression

Multiple regression is a flexible method of data analysis that may be appropriate whenever a quantitative variable (the dependent or criterion variable) is to be examined in relationship to any other factors (expressed as independent or predictor variables) .

The strength of prediction from a multiple regression equation is nicely measured by the square of the multiple correlation coefficient.