Learning Objectives

3.1 Describe the characteristics of the scientific approach.

3.2 Describe the characteristics of the nonexperimental methods of psychological research.

3.3 Explain why the experimental research method is generally considered more reliable than nonexperimental methods.

3.4 Identify the steps in designing an experimental study.

3.5 Identify other types of research and considerations in studying psychopathology.

3.6 Discuss the ethical considerations that must be observed in performing psychological research.