Apparently, according to some studies, men who drive expensive sports cars have lower blood pressure and fewer cardiovascular health problems. We can't conclude that driving expensive sports cars lowers blood pressure or improves cardiovascular health because the studies described are clearly:
A)experiments.
B)observational studies, not experiments-lurking variables may explain the association.
C)paired data experiments.
D)stratified experiments.

Question

Quizplus · Accepted Answer

The studies described are observational and do not involve manipulating a variable. Therefore, we cannot infer causation and there may be lurking variables that explain the observed association.

Apparently, According to Some Studies, Men Who Drive Expensive Sports