Which of the Following Statements is a Testable Scientific Hypothesis

Question

Which of the following statements is a testable scientific hypothesis?
A) Antioxidants from food are better than antioxidants from a vitamin pill.
B) Eating fish reduces the chance of having a stroke.
C) Embryonic stem cell research will allow scientists to find a cure for diabetes.
D) Smoking makes people less attractive.

Accepted Answer

This statement can be tested through a scientific study comparing the incidence of stroke in a group of people who eat fish regularly and a group who does not.

Note: A is also a testable hypothesis, though may be harder to test due to potential confounding factors. C and D are not testable hypotheses as they make a prediction without a clear way to measure or observe the outcome.