Which of these is NOT an assumption when conducting hypothesis testing for r?
A) The population distributions should be normal.
B) To insure generalizability, the data should be randomly selected.
C) The variability of scores on one variable should be equal across all levels of the second variable.
D) The variables being studied are positively correlated.

Question

Quizplus · Accepted Answer

The assumption that the variables being studied are positively correlated is not necessary for conducting hypothesis testing for r. However, it is important to check for normality, randomness of data selection, and equal variability of scores across levels of the second variable.

Which of These Is NOT an Assumption When Conducting Hypothesis