Why Are Curvilinear Relationships Hard to Detect with Correlation Coefficients

question 4

Multiple Choice

Why are curvilinear relationships hard to detect with correlation coefficients (r) ?

• A)Curvilinear relationships require a large amount of scores.
• B)r always looks for the best straight line to fit the data.
• C)r always assumes a zero association.
• D)r always assumes a negative relationship.

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