15_Lecture15.2_Correlation&Regression_0422_Spring11

15_Lecture15.2_Correlation&Regression_0422_Spring11...

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1 PSY207 B Spring 2011 Psychological Statistics Correlation & Regression 13.1 Introduction to Correlation 13.2 The Pearson correlation 13.3 Hypothesis Testing for Pearson Correlation 13.4 More Considerations 13.5 Introduction to Linear Regression Correlation Measures and describes a relationship between two variables. • Characteristics of relationships Direction (negative or positive) Strength Examples of positive and negative relationships Three degrees of linear relationship Learning Check • A scatterplot shows a set of data points that are clustered loosely around a line that slopes down to the right . Which of the following values would be closest to the correlation for these data?
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2 Correlation & Regression 13.1 Introduction to Correlation 13.2 The Pearson correlation 13.3 Hypothesis Testing for Pearson Correlation 13.4 More Considerations 13.5 Introduction to Linear Regression Introduction to Linear Equations and Regression • The Pearson correlation measures a linear relationship between two variables
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15_Lecture15.2_Correlation&Regression_0422_Spring11...

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