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Based on the provided research scenario, which specific measure represents the outcome (or criterion) variable, and why is it classified this way according to the principles of regression analysis?
Case context: A developmental psychology research team is using a regression model to investigate how well a child's early language exposure (measured in hours of conversation per week) can forecast their later reading comprehension scores in the third grade.
Question: Based on the provided research scenario, which specific measure represents the outcome (or criterion) variable, and why is it classified this way according to the principles of regression analysis?
Sample answer: The third-grade reading comprehension score is the outcome variable (or criterion variable). It is classified this way because it is the specific variable that the researchers' regression model is trying to predict based on earlier language exposure.
Key points:
- Identifies the third-grade reading comprehension score as the outcome variable.
- Recognizes that the outcome variable is synonymous with the criterion variable in this context.
- Explains that this classification is because reading comprehension is the variable being predicted.
Rubric: The response must correctly identify the reading comprehension score as the outcome variable and demonstrate comprehension by stating that it is the variable being predicted by the model.
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Research Methods in Psychology - 4th American Edition @ KPU
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Multiple Regression
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