Research Design Explained

Mark L. Mitchell, Janina M. Jolley

Chapter 3 Generating and Refining Research Hypotheses - all with Video Answers

Educators

Chapter Questions

Problem 1

Look up a research study that tests a commonsense notion or proverb. (If you are having difficulty finding an article, consult Web Appendix B.) What is the title of the article? What are its main conclusions?

Victor Salazar

Numerade Educator

Problem 2

Writing an essay that expresses opinions that go against your beliefs may cause you to change your beliefs. According to dissonance theory, what factors would moderate the effect of writing such an essay?

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Problem 3

According to dissonance theory, what is an important variable that mediates attitude change?

Susan Hallstrom

Numerade Educator

02:04

Problem 4

Find a research article that tests a hypothesis derived from theory. Give the citation for the article and describe the main findings.

Shareef Jackson

Numerade Educator

03:12

Problem 5

Describe the relationship between moderator variables and external validity.

Kristin Cameron

Numerade Educator

Problem 6

Design a study to improve the construct validity of the study reported in Appendix B.

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01:45

Problem 7

Design a study to test the generalizability of the findings of the study reported in Appendix B.

Jeff Vermeire

Numerade Educator

01:14

Problem 8

The study reported in Appendix B finds a relationship between two variables. Design a study to map out the functional relationship between those two variables.

Ankit Gupta

Numerade Educator

01:45

Problem 9

Design a study to test the practical implications of the findings from the study reported in Appendix B.

Jeff Vermeire

Numerade Educator

00:50

Problem 10

Taking into account the problems with the null hypothesis, discuss what is wrong with the following research conclusions:
a. There is no difference in outcome among the different psychological therapies.
b. Viewing television violence is not related to aggression.
c. There are no gender differences in emotional responsiveness.

Harsh Gadhiya

Numerade Educator