Question 1
Identify the type of study most appropriate to the question.
Is the aspirin produced by a particular pharmaceutical company better than that of a competitor at relieving headaches?
◦ Observational
◦ Experimental
◦ Retrospective observational
◦ Double-blind experimental
Question 2
Identify the type of study most appropriate to the question.
A science project question: Which of two paper towels is more absorbent?
◦ Double-blind experimental
◦ Experimental
◦ Single-blind experimental
◦ Observational