In a longitudinal study that measures 2 variables at 3 time points, how many cross-sectional correlations would there be? Question 5 options: It depends on the number of participants. 3 4 2 If an original bivariate correlation is not found within subgroups (based on different levels of a third variable) this suggests that: Question 6 options: the correlation within subgroups is spurious the original correlation was not significant the original correlation is explained by the third variable the original correlation is not explained by the third variable