The variables Exam (variable A) and Anxiety (variable B) may be correlated but not causally related because: a.            The variables are not inversely related b.            Changes in A do not...

The variables Exam (variable A) and Anxiety (variable B) may be correlated but not causally related because:

a.            The variables are not inversely related

b.            Changes in A do not precede changes in B

c.             Other possible variables impact B

d.            All the above

The type of variable in a study measuring the heights of children is a

a.            Categorical variable

b.            Quantitative variable

c.             Independent variable

d.            Extraneous variable