Some football players put streaks of black paint under their eyes because they believe that it helps them see better in sunny conditions and react more quickly. A sensory psychologist wants to see if this is really true. He gathers a group of volunteers and randomly divides them in two. Half get black paint applied under their eyes and half get flesh-color. The players are not allowed to look in the mirror, so they don’t know which color they have. The psychologist then gives them a reaction time task to measure, in milliseconds, how quickly they can respond to a change in a stimulus while bright lights are being shined at them.

a. Generate a sentence that states the question the researcher is trying to answer.
b. List the variables and label them as independent and dependent.
c. Determine what type of study is being done: correlational, experimental, or quasi-experimental.
d. If the study is correlational or quasi-experimental, come up with a plausible confounding variable and explain how it affects both variables.