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Define a field experiment by identifying its three core components, and state the conditions under which it can achieve high levels of both internal and external validity.
Question: Define a field experiment by identifying its three core components, and state the conditions under which it can achieve high levels of both internal and external validity.
Sample answer: A field experiment is a type of field study where a researcher actively manipulates an independent variable in a natural setting. To maintain validity, the researcher must also control extraneous variables as much as possible. Depending on the level of control achieved over these extraneous variables, a field experiment can yield high levels of both internal and external validity.
Key points:
- Active manipulation of an independent variable in the study.
- Conducting the study within a natural, real-world setting.
- Controlling extraneous variables as much as possible.
- Internal and external validity levels depend on the level of control achieved.
Rubric: To receive full credit, the response must identify the three core components of a field experiment: 1) active manipulation of an independent variable, 2) conducting the study in a natural setting, and 3) controlling extraneous variables as much as possible. Additionally, the response must state that achieving high levels of both internal and external validity depends on the level of control achieved over extraneous variables.
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Research Methods in Psychology - 4th American Edition @ KPU
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