Critical Table 10 Values for Significance of a Pearson r1 13. Values of Pearson r may range from to A. 1;+1 B. 1;2 C. 1;+2 D. +1;+2 14. Suppose you are interested in knowing how much of the variation in scores on a Sociology test can be explained or predicted by the number of hours the students studied for the test. What statistical analysis would you use? A. Frequency distribution B. Multiple correlation C. Linear regression D. Coefficient of determination.