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Psychology
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Correlation and Causation
Grade Level
Psychology
PSY.053 Correlation and Causation
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A correlation matrix shows study time and test score are related at r =.48, motivation and study time at r =.55, and motivation and test score at r =.52. What is the best interpretation?
A
Motivation is a plausible third variable that could partly explain the study-time and score relationship.
B
Study time is proven to be the only cause of the test-score difference.
C
Motivation cannot matter because it is measured in the same table.
D
The largest correlation always identifies the outcome variable.
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