Imagine that you tested 20 high school students (15 male, 5 female). Twelve males and four females reported feeling a calming effect after exposure to the color blue.

Question

In two to three sentences, explain how you could repeat this test in a different way to prove that the design was internally valid and reliable.

Answer 1

To further test the internal validity and reliability of the results, you could randomly assign participants to two groups - one group exposed to the color blue and another group exposed to a control color. This way, you can compare the effects of exposure to blue against a control condition. Additionally, you could replicate the study with a larger sample size to ensure the results are consistent and generalizable.