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A researcher is planning an experiment investigating how 'Study Environment' (Quiet vs. Noisy) and 'Student Personality' (Introvert vs. Extrovert) interact to affect exam scores. If Introverts perform better in a Quiet environment than a Noisy environment, predict the performance pattern for Extroverts that would be required to produce a cross-over interaction, and describe what the graphed lines would do.
Question: A researcher is planning an experiment investigating how 'Study Environment' (Quiet vs. Noisy) and 'Student Personality' (Introvert vs. Extrovert) interact to affect exam scores. If Introverts perform better in a Quiet environment than a Noisy environment, predict the performance pattern for Extroverts that would be required to produce a cross-over interaction, and describe what the graphed lines would do.
Sample answer: To produce a cross-over interaction, Extroverts must perform better in a Noisy environment than in a Quiet environment, representing the opposite direction of the effect seen in Introverts. Consequently, the plotted lines representing Introverts and Extroverts on the exam score graph will physically intersect and cross over each other.
Key points:
- Predict that Extroverts perform better in the Noisy environment than Quiet environment.
- Specify that the effects must operate in completely opposite directions.
- State that the graphed lines will physically intersect and cross over each other.
Rubric: Criteria: 1. Predicts that Extroverts will perform better in a Noisy environment than a Quiet environment (opposite direction) (2 points). 2. Explains that the lines plotting the conditions will physically intersect and cross over each other (2 points).
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Research Methods in Psychology - 4th American Edition @ KPU
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A researcher is planning an experiment investigating how 'Study Environment' (Quiet vs. Noisy) and 'Student Personality' (Introvert vs. Extrovert) interact to affect exam scores. If Introverts perform better in a Quiet environment than a Noisy environment, predict the performance pattern for Extroverts that would be required to produce a cross-over interaction, and describe what the graphed lines would do.