A researcher investigated whether a person's mood influences another person's mood. The researcher randomly divided the participants into three groups. Participants in the first group interacted with a happy person. Participants in the second group interacted with a sad person. Participants in the third group interacted with an emotionally neutral person. After the interaction, the researcher measured how happy the participants were. What are the conditions of the independent variable in this study?
a. happy, sad, neutral
b. happiness of the other person
c. happiness of the participant
d. there are no conditions of an independent variablethis is a correlational study
Question 2
A researcher investigates whether there is a relationship between type of background music being listened to and responses to a mood inventory by having 60 randomly selected participants complete the mood inventory, with 20 randomly assigned to each of three rooms. In one room classical music is played in the background, in another hard rock music, and in a third country music. The type of background music variable is a(n)
a. true independent variable. c. dependent variable.
b. quasi-independent variable. d. interval scale.
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