Learning Objectives

Chapter 4

  • Describe the four characteristics of the scientific approach, as well as the two additional key ingredients in psychological research.
  • Identify the three stages of the scientific process?
  • Demonstrate why the case study been particularly valuable in psychopathology research.
  • Describe the four characteristics of the naturalistic observation method?
  • Understand the difference between the experimental group and the control group, as well as why the control group is important.
  • Define an operational definition. Illustrate how it helps advance scientific knowledge.
  • Illustrate how the IV, the DV, and confounding variables are related.
  • Define a double-blind experiment, and assess what we are trying to control for by using that design.
  • Summarize the five factors critical to enabling sound inference in determining the relation between the IV and the DV in an experiment.
  • Know why randomization is important to selecting participants and assigning them to groups in an experimental study.
  • Design a match subjects study and describe when you would you this design instead of a randomized study.
  • Define what roles the following hypotheses play in interpreting experimental results:
    • Null hypothesis
    • Confound hypothesis
    • Research hypothesis
  • Invent research questions could you explore using each of the following research designs. Describe the advantages and disadvantages of each.
    • Single subject design
    • Longitudinal research
    • Epidemiological research
  • Describe the overall goal of behavioral genetics research, as well as the three primary types of research designs used in behavioral genetics research.
  • Appraise which is more important: statistical significance or clinical significance. Explain why.
  • Asses why a research study that has already been conducted and its results have already been communicated, should be replicated.
  • "Ethical considerations of psychological experimentation have at their heart the idea that people participating in research should not be harmed." What four questions does every scientist need to consider in designing a research study?
  • Which four sources of ethical and legal guidelines help the scientist in designing and conducting psychopathology research?
  • What are "voluntary participation" and "informed consent" in the context of scientific research? What are some of the specific issues they raise in terms of psychopathology research?
  • How do "confidentiality" and "anonymity" figure into the experimenter’s responsibility to protect the research participant’s right to privacy?
  • What are the questions an IRB asks in regard to the risks of a psychopathology research study?