dr. johnson is interested in whether walking or running makes people happier. so, she has some participants walk 2 miles and some participants run 2 miles. after participants complete their run or walk, she has them fill out a level of happiness questionnaire in order to determine if one group is happier than the other after their run or walk. which of the following is the dependent variable?
Answer: In this scenario, the dependent variable is the “level of happiness” reported by the participants after their run or walk. It is the variable that is being measured and is expected to change based on the participants’ activity (walking or running). The independent variable is the type of activity (walking or running) performed by the participants.