AP PSYCHOLOGY

Detailed explanation-1: -A correlation coefficient of zero indicates that no linear relationship exists between two continuous variables, and a correlation coefficient of −1 or +1 indicates a perfect linear relationship.

Detailed explanation-2: -The possible range of values for the correlation coefficient is-1.0 to 1.0. In other words, the values cannot exceed 1.0 or be less than-1.0. A correlation of-1.0 indicates a perfect negative correlation, and a correlation of 1.0 indicates a perfect positive correlation.

Detailed explanation-3: -Correlation coefficients whose magnitude are between 0.9 and 1.0 indicate variables which can be considered very highly correlated.

Detailed explanation-4: -For this kind of data, we generally consider correlations above 0.4 to be relatively strong; correlations between 0.2 and 0.4 are moderate, and those below 0.2 are considered weak.