Five-point Likert scales (strongly disagree, disagree, neutral, agree, strongly agree) are frequently used to measure motivations and attitudes. A Likert scale is a:

A. Discrete and ordinal varriables only.

B. Ordinal and categorical variables only.

C. Categorical and discete variables only.

D. Discrete, ordinal and categorical variables.

R2 is the notation for:

A. The coefficient of correlation.

B. The coefficient of determination.

C. The coefficient of variation.

D. The coefficient of regression.

What does the statistic Cramer's V indicate?

A. The significance of the Chi-square test.

B. The expected frequencies in a contingency table.

C. The amount of common variability of two numeric variables.

D. The strength of association between two categorical variables..