1) What isr²?

A. the Regression coefficient

B. the coefficient of determination

C. the coefficient of destination

D. the Pearson coefficient

2) A scatter plot shows a set of data points that are clustered close to a line that slopes down to the right. Which of the following values would be closest to the correlation for these data?

A. -0.40

B. 0.80

C. -0.89

D. 0.40

3) The results from a research study indicate that adolescents who watch more violent content on television also tend to engage in more violent behavior than their peers. The correlation between amount of TV violent content and amount of violent behavior is an example of

A. a negative correlation.

B. a positive correlation.

C. a correlation near one.

D. a correlation near zero.

4) On a scatter diagram, the vertical distance between the dot for the actual score and the regression line represents the

A. slope.

B. regression constant.

C.error

D. squared error.

5) What correlation coefficient is required if one of the variables is dichotomous?

A. Spearman.

B. Pearson.

C. Tillerson.

D. Point-Biserial.