Correlation And Prediction

2/15/02


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Table of Contents

Correlation And Prediction

Correlation

Types of Variables

Graphing: Scatter Plot

Patterns of Correlation

More Info on Correlation

Computing the Pearson Correlation Coefficient (r)

Degree of Correlation

Interpreting Correlations

Plots and Computations

Statistical Significance

Correlation Matrix from SPSS

Example

A suggestion...

Regression

Prediction

Terminology

Multiple Regression

Prediction with Z scores

Example

Manager’s Stress example

Continued

More

Prediction with Raw Scores

Number supervised (X): M=7; SD=2.37; Stress (Y): M=6; SD =2.61 EXAMPLE: Someone Supervising 3 employees

Last Year’s Psych 201 class

Example

This is what you see

This is what you see

Terms

Multiple Regression

This is what you would see

This is what you would see

This is what you would see

Stepwise Multiple Regression

Excluded Variables

What you need to know

More...

A suggestion...

Chapter 3 Summary

 Author: pcuser

Home Page: http://www.mtholyoke.edu/courses/bpackard/stats/