Research methods

Research Methods in Abnormal Psychology

Validity

• Internal Validity

• External Validity

Research Designs and Methods

1. Case Study

2. Correlational Design

3. Experimental Design

4. Quasi-Experimental Designs

5. Single-Case Experimental Designs

6. Developmental Designs

7. Behavioral Genetics Research

   • Family History Studies

   • Twin Studies

   • Adoption Studies