RESEARCH STUDY 3.4 Dr. Kang, a Cognitive Psychologist, Conducts an Experiment Examining the Experiment

RESEARCH STUDY 3.4
Dr. Kang, a cognitive psychologist, conducts an experiment examining the effect of emotion on memory. He provides lists of 15 words to two groups of participants at his university. He puts the names of all the participants in a hat. The first 20 names he assigns to Group A and the last 20 he assigns to Group B. Group A is given a list of words that are very emotional in content (e.g., passion, murder) . Group B is given a list of words that are neutral in content (e.g., houseplant, desk) . He then measures how many words each group is able to remember after being distracted for 5 minutes by watching a video about the history of the university. He finds that Group A remembers 15% more words than Group B.
-Refer to Research Study 3.4 above to answer the following question. Which of the following makes Dr.Kang's study an experiment?

A) Dr. Kang manipulated one variable and measured another.
B) Dr. Kang used a distractor task.
C) The study was conducted at a university.
D) The study was conducted by a professor.
E) All of the above make Dr. Kang's study an experiment.