Quasi experimental research design

1. Quasi- Experimental Research Design -Erlwinmer Mangmang

2. Concept… Are designs in which researchers have only partial control over their INDEPENDENT VARIABLES

3.  Not randomized population  Categorical in nature

4. Advantages… • Nature given • Provoke fewer concern on its external validity • Resource wise • More realistic

5. Disadvantages…  Low internal validity  Less manipulation  Increase confounding variables

6. Types of Quasi-Experiment Person-by-Treatment Quasi- Experimens Natural Experiments

7. Person-by-Treatment Quasi- Experimens  Researcher maintains partial control over the study  Almost always take place in laboratory  Always us random assignment

8. Method: Person-by-Treatment Quasi Experiments

9. Natural Experiments No use of true random assignment Utilizes phenomena and compares it

10. Thank you

Quasi experimental research design

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