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Define blind administration and explain its primary purpose in psychological research. Specifically, identify who is kept unaware of the study's details and what specific threat to internal validity this procedure is designed to minimize.
Question: Define blind administration and explain its primary purpose in psychological research. Specifically, identify who is kept unaware of the study's details and what specific threat to internal validity this procedure is designed to minimize.
Sample answer: Blind administration is a procedural precaution where a research helper, who is completely unaware of the study's intent or specific hypothesis, administers the measures. Its primary purpose is to minimize the experimenter expectancy effect, which occurs when a researcher's expectations inadvertently bias participant behavior.
Key points:
- Blind administration involves using a research helper to administer measures.
- The helper must be completely unaware of the study's intent or hypothesis.
- The procedure is designed to minimize the experimenter expectancy effect.
- It prevents the researcher's expectations from inadvertently biasing participant behavior.
Rubric: The answer must accurately define blind administration as having a research helper who is unaware of the study's intent or hypothesis administer the measures. It must also identify the experimenter expectancy effect as the specific threat to validity being minimized.
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Research Methods in Psychology - 4th American Edition @ KPU
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