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Quasi-Experimental Design
Q1. When using a pretest/posttest design with a quasi-experimental true case study concept, what are some advantages and/or disadvantages I should consider?
Q2. What are ways to eliminate any disadvantages within the pretest/posttest design if there are any?
Q1: Advantages and Disadvantages
Advantages:
- Baseline Measurement: The pretest provides a baseline measurement of the dependent variable, allowing for comparison before and after the intervention.
- Change Measurement: The posttest measures the effects of the intervention, providing insights into its impact.
- Simplified Design: This design is relatively straightforward and easy to implement, especially in settings where random assignment is not feasible.
- Practicality: It is often easier to apply in real-world settings where controlling for all variables might be challenging.
Disadvantages:
- Threats to Internal Validity: Without random assignment, there are threats like maturation, history, and testing effects that could influence the results.
- No Control Group: Lacking a control group makes it difficult to attribute observed changes solely to the intervention, as…
Q1: Advantages and Disadvantages
Advantages:
- Baseline Measurement: The pretest provides a baseline measurement of the dependent variable, allowing for comparison before and after the intervention.
- Change Measurement: The posttest measures the effects of the intervention, providing insights into its impact.
- Simplified Design: This design is relatively straightforward and easy to implement, especially in settings where random assignment is not feasible.
- Practicality: It is often easier to apply in real-world settings where controlling for all variables might be challenging.
Disadvantages:
- Threats to Internal Validity: Without random assignment, there are threats like maturation, history, and testing effects that could influence the results.
- No Control Group: Lacking a control group makes it difficult to attribute observed changes solely to the intervention, as…
Q1: Advantages and Disadvantages
Advantages:
- Baseline Measurement: The pretest provides a baseline measurement of the dependent variable, allowing for comparison before and after the intervention.
- Change Measurement: The posttest measures the effects of the intervention, providing insights into its impact.
- Simplified Design: This design is relatively straightforward and easy to implement, especially in settings where random assignment is not feasible.
- Practicality: It is often easier to apply in real-world settings where controlling for all variables might be challenging.
Disadvantages:
- Threats to Internal Validity: Without random assignment, there are threats like maturation, history, and testing effects that could influence the results.
- No Control Group: Lacking a control group makes it difficult to attribute observed changes solely to the intervention, as…