1) What is the difference between a positive correlation and a negative correlation?
a-Negative

correlations represent a weak relationship; positive correlations represent a strong relationship.

b-In a negative correlation high scores go with high scores and low with low; in a positive correlation high scores go with low scores and low with high.

c-Negative correlations are curvilinear; positive correlations are straight lines.

d-In a negative correlation high scores go with low scores and low with high; in a positive correlation high scores go with high scores and low with low.

2) For a correlation of .5, the proportion of variance of one variable that is shared with the other variable is:

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