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Explain why replacing the live experimenter's role with an automated procedure would address these specific methodological issues. In your explanation, show your understanding of how automation functions as a standardization tool and its impact on unintended variation and expectancy effects.
Case context: A researcher is conducting a study on cognitive focus. During the testing session, the experimenter personally greets each participant, reads the instructions aloud, and manually logs the participant's button-press responses. After reviewing the initial data, the researcher notices subtle variations in how instructions were read, which might have led to experimenter expectancy effects.
Question: Explain why replacing the live experimenter's role with an automated procedure would address these specific methodological issues. In your explanation, show your understanding of how automation functions as a standardization tool and its impact on unintended variation and expectancy effects.
Sample answer: Replacing the live experimenter with software or computer presentations eliminates direct human interaction. This ensures that instructions are delivered in the exact same way to all participants, which functions as a standardization tool to reduce unintended variation. Additionally, by removing the experimenter from the active testing and data collection process, it eliminates the opportunity for the experimenter's expectations to unconsciously influence the participants or the logging of responses, thereby preventing experimenter expectancy effects.
Key points:
- Explains that software or computers deliver instructions and collect data without direct human interaction.
- Demonstrates comprehension of how automation standardizes the procedure to reduce unintended variation.
- Explains how minimizing the experimenter's role eliminates opportunities for experimenter expectancy effects.
Rubric: The response should demonstrate comprehension by explaining that software or computer presentations standardize the delivery of instructions to eliminate human bias. It must link the removal of the experimenter's active role directly to the reduction of unintended variation and the elimination of experimenter expectancy effects.
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Research Methods in Psychology - 4th American Edition @ KPU
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