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PSY 3320 Research Methods
Mark W. Tengler, M.S.
Assignment 3
Hypothesis Assignment
Instructions:
Briefly (approximately a paragraph) answer each question below. You may copy and paste the
assignment and put your answers directly following the question
Scenario A: A professor is interested in whether taking online quizzes over a chapter before
discussing the chapter in class will improve students? test performance. The professor is
interested in examining the testing effect, the finding that taking a memory test not only
assesses what one knows, but also enhances later retention. The professor hypothesizes that
students who take chapter quizzes will score higher on the midterm exam than students who
do not take chapter quizzes.
1. Design and describe an experiment that could test this hypothesis.
2. Identify the IV and DV.
3. Provide an operational definition of each variable.
Scenario B: Consider the following experiment. Each participant interacted for an hour with
another person who was actually a research confederate (an actor working for the researcher
to create a certain effect). The confederate either presented herself as similar or dissimilar to
the participant. After this interaction, both persons agreed to return one week later for another
session with each other. When the real participants returned, they were falsely informed that
the person they had met the week before had died. The researchers then compared how long
the participant spent viewing a picture of the ?deceased? person, depending on whether the
person had presented as similar or dissimilar to them. The participant was never told that the
reported death was untrue.
1. Write a hypothesis that is tested in this study.
2. Discuss the ethical issues raised in the experiment.
3. What would you recommend the experimenters do to protect the participants and
minimize risk of harm?
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