What is the correlation coefficient for proactive aggression and sibling size in SPSS Output 3? What would a researcher say about a coefficient of determination equal to -.98? O Al The 98% of variance in my independent variable can be explained by variance in my dependent variable. B) Something must be wrong, because it is not possible for a coefficient of determination to be negative. O C) The relationship is not statistically significant due to the low value of the coefficient