Hph7310week2winter2009narr

HPH 7310 Correlations and Covariates ,[object Object],[object Object],[object Object],[object Object]

Correlations ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Scatter Plots Positive r Negative r Zero r (a “cloud”)

[object Object],[object Object],Positive r Negative r Zero r (a “cloud”) That line’s angle is the slope

[object Object],Positive r Negative r Zero r (a “cloud”)

[object Object],[object Object],[object Object]

Factors Affecting the Size of r ,[object Object],[object Object],income Price of Car income Price of Car vs

Factors Affecting the Size of r ,[object Object],[object Object],[object Object],[object Object],Exam score Anxiety Anxiety Exam Score

Factors Affecting the Size of r ,[object Object],Which scatterplot illustrates a larger correlation?

Creating Correlations in SPSS “ The correlation between depression and feelings of hopelessness is significantly different from zero. The size and direction of the correlation suggests that people who are depressed tend to have increased feelings of hopelessness (or vice versa)”.

Creating Correlations in SPSS “ The correlation between current family income and breakdown of physical health is small, yet significantly different than zero”. The size and direction of the correlation suggests a small tendency for current family income to decrease as the breakdown of physical health increases. (or vice versa)”.

Hph7310week2winter2009narr

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