- State the purpose of experimental research, identify its characteristics, and differentiate the four types of experimental research designs.
- Identify the strengths and limitations of experimental research.
- Differentiate random selection from random assignment.
- Define internal and external validity and discuss their importance in experimental research designs.
- Discuss construct and statistical validity issues in experimental research designs.
- Identify the common threats to internal validity and provide a description of each.
- Identify the two types of external validity threats and the specific threats unique to each one. Provide a description of each threat.
- Describe three pre-experimental designs notationally. Identify the threats to internal validity for each of these designs.
- Describe two true experimental designs notationally. Differentiate a control group design from a comparison group design as well as a pretest-posttest design from a posttest only design. Identify the threats to internal validity for each of these designs.
- Discuss the standards of judging the quality of true experimental designs and apply these standards to a true experimental study.
- Describe three quasi-experimental designs notationally. Identify the threats to internal validity for each of these designs.
- Discuss the standards of judging the quality of quasi-experimental designs and apply these standards to a quasi-experimental study.
- Identify the unique characteristics of single subject designs and describe the A-B, A-B-A, and multiple baseline designs notationally. Discuss each design in terms of causal inferences.
- Discuss the standards of judging the quality of single subject designs and apply these standards to a single subject study.
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