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

Multiple Choice

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. Dr.Kang can make a causal claim that "emotion enhances memory" because:

A) There is a numeric difference between Groups A and B
B) Reading the words occurred before recalling the words
C) Dr. Kang treated Groups A and B identically except for the emotional word content
D) All of the above allow him to make a causal claim
E) He cannot make a causal claim based on his study