Skip to main content

Research Methods in Psychology: Psychological Measurement

Research Methods in Psychology
Psychological Measurement

  • Show the following:

    Annotations
    Resources

  • Adjust appearance:

    Font
    Font style
    Color Scheme
    Light
    Dark
    Annotation contrast
    Low
    High
    Margins
  • Search within:
    • Notifications
    • Privacy
  • Project HomeResearch Methods in Psychology
  • Projects
  • Learn more about Manifold

Notes

table of contents
  1. Acknowledgements
  2. About this Book
  3. About the Authors of the Current Edition
  4. Preface
  5. The Science of Psychology
    1. Methods of Knowing
    2. Understanding Science
    3. Goals of Science
    4. Science and Common Sense
    5. Experimental and Clinical Psychologists
    6. Key Takeaways and Exercises
  6. Overview of the Scientific Method
    1. A Model of Scientific Research in Psychology
    2. Finding a Research Topic
    3. Generating Good Research Questions
    4. Developing a Hypothesis
    5. Designing a Research Study
    6. Analyzing the Data
    7. Drawing Conclusions and Reporting the Results
    8. Key Takeaways and Exercise
  7. Research Ethics
    1. Moral Foundations of Ethical Research
    2. From Moral Principles to Ethics Codes
    3. Putting Ethics Into Practice
    4. Key Takeaways and Exercises
  8. Psychological Measurement
    1. Understanding Psychological Measurement
    2. Reliability and Validity of Measurement
    3. Practical Strategies for Psychological Measurement
    4. Key Takeaways and Exercises
  9. Experimental Research
    1. Experiment Basics
    2. Experimental Design
    3. Experimentation and Validity
    4. Practical Considerations
    5. Key Takeaways and Exercises
  10. Non-Experimental Research
    1. Overview of Non-Experimental Research
    2. Correlational Research
    3. Complex Correlation
    4. Qualitative Research
    5. Observational Research
    6. Key Takeaways and Exercises
  11. Survey Research
    1. Overview of Survey Research
    2. Constructing Surveys
    3. Conducting Surveys
    4. Key Takeaways and Exercises
  12. Quasi-Experimental Research
    1. One-Group Designs
    2. Non-Equivalent Groups Designs
    3. Key Takeaways and Exercises
  13. Factorial Designs
    1. Setting Up a Factorial Experiment
    2. Interpreting the Results of a Factorial Experiment
    3. Key Takeaways and Exercises
  14. Single-Subject Research
    1. Overview of Single-Subject Research
    2. Single-Subject Research Designs
    3. The Single-Subject Versus Group “Debate”
    4. Key Takeaways and Exercises
  15. Presenting Your Research
    1. American Psychological Association (APA) Style
    2. Writing a Research Report in American Psychological Association (APA) Style
    3. Other Presentation Formats
    4. Key Takeaways and Exercises
  16. Descriptive Statistics
    1. Describing Single Variables
    2. Describing Statistical Relationships
    3. Expressing Your Results
    4. Conducting Your Analyses
    5. Key Takeaways and Exercises
  17. Inferential Statistics
    1. Understanding Null Hypothesis Testing
    2. Some Basic Null Hypothesis Tests
    3. Additional Considerations
    4. From the “Replicability Crisis” to Open Science Practices
    5. Key Takeaways and Exercises
  18. Glossary
  19. References

IV

Psychological Measurement

Researchers Tara MacDonald and Alanna Martineau were interested in the effect of female university students’ moods on their intentions to have unprotected sexual intercourse (MacDonald & Martineau, 2002)[1]. In a carefully designed empirical study, they found that being in a negative mood increased intentions to have unprotected sex—but only for students who were low in self-esteem. Although there are many challenges involved in conducting a study like this, one of the primary ones is the measurement of the relevant variables. In this study, the researchers needed to know whether each of their participants had high or low self-esteem, which of course required measuring their self-esteem. They also needed to be sure that their attempt to put people into a negative mood (by having them think negative thoughts) was successful, which required measuring their moods. Finally, they needed to see whether self-esteem and mood were related to participants’ intentions to have unprotected sexual intercourse, which required measuring these intentions.

To students who are just getting started in psychological research, the challenge of measuring such variables might seem insurmountable. Is it really possible to measure things as intangible as self-esteem, mood, or an intention to do something? The answer is a resounding yes, and in this chapter we look closely at the nature of the variables that psychologists study and how they can be measured. We also look at some practical issues in psychological measurement.

Do You Feel You Are a Person of Worth?

The Rosenberg Self-Esteem Scale (Rosenberg, 1989)[2] is one of the most common measures of self-esteem and the one that MacDonald and Martineau used in their study. Participants respond to each of the 10 items that follow with a rating on a 4-point scale: Strongly Agree, Agree, Disagree, Strongly Disagree. Score Items 1, 2, 4, 6, and 7 by assigning 3 points for each Strongly Agree response, 2 for each Agree, 1 for each Disagree, and 0 for each Strongly Disagree. Reverse the scoring for Items 3, 5, 8, 9, and 10 by assigning 0 points for each Strongly Agree, 1 point for each Agree, and so on. The overall score is the total number of points.

  1. I feel that I’m a person of worth, at least on an equal plane with others.
  2. I feel that I have a number of good qualities.
  3. All in all, I am inclined to feel that I am a failure.
  4. I am able to do things as well as most other people.
  5. I feel I do not have much to be proud of.
  6. I take a positive attitude toward myself.
  7. On the whole, I am satisfied with myself.
  8. I wish I could have more respect for myself.
  9. I certainly feel useless at times.
  10. At times I think I am no good at all.
  1. MacDonald, T. K., & Martineau, A. M. (2002). Self-esteem, mood, and intentions to use condoms: When does low self-esteem lead to risky health behaviors? Journal of Experimental Social Psychology, 38, 299–306. ↵
  2. Rosenberg, M. (1989). Society and the adolescent self-image (rev. ed.). Middletown, CT: Wesleyan University Press. ↵

Annotate

Next Chapter
Understanding Psychological Measurement
PreviousNext

Copyright © 2019

                                by Rajiv S. Jhangiani, I-Chant A. Chiang, Carrie Cuttler, & Dana C. Leighton

            Research Methods in Psychology by Rajiv S. Jhangiani, I-Chant A. Chiang, Carrie Cuttler, & Dana C. Leighton is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.
Powered by Manifold Scholarship. Learn more at
Opens in new tab or windowmanifoldapp.org