Sapna is interested in the influence of nutrition on reaction time.She assigns participants to eat a salad and fruit for dinner every day for a week or to eat fast food each day.She then brings participants into the lab and asks them to push a button on a keyboard as fast as they can every time they hear a particular sound.What are the operational definitions of the variables in Sapna's study?
A) Nutrition; whether participants eat a salad or fast food
B) Nutrition; reaction time
C) Whether participants eat salad or fast food; reaction time
D) Whether participants eat salad or fast food; how quickly they push the button when they hear the sound

Question

Quizplus · Accepted Answer

The independent variable is whether participants eat salad or fast food, which is operationalized as the type of dinner they consume each day. The dependent variable is reaction time, which is operationalized as the speed at which participants push a button when they hear a sound. Therefore, option D is the correct choice as it encompasses both operational definitions.

Sapna Is Interested in the Influence of Nutrition on Reaction