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Describe the requirements for establishing participant selection rules in a field experiment where participants are encountered naturally, and explain the primary purpose of having these rules.
Question: Describe the requirements for establishing participant selection rules in a field experiment where participants are encountered naturally, and explain the primary purpose of having these rules.
Sample answer: In field experiments with naturally encountered participants, researchers must establish explicit, well-defined selection rules before data collection begins. The primary purpose of these rules is to prevent both intentional and unintentional selection bias by clearly dictating exactly who is included in the study.
Key points:
- Rules must be well-defined and explicit.
- Rules must be established before data collection begins.
- The primary purpose is to prevent selection bias.
- The rules dictate exactly who is included to avoid experimenter influence.
Rubric: Full credit requires stating when the rules must be established (before data collection) and explaining their main purpose (preventing selection bias).
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Research Methods in Psychology - 4th American Edition @ KPU
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Describe the requirements for establishing participant selection rules in a field experiment where participants are encountered naturally, and explain the primary purpose of having these rules.
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You are designing a field experiment to observe how people react to someone asking for directions on a college campus. Propose a specific, well-defined participant selection rule you could establish before data collection to prevent selection bias.