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Questions and Answers
What is true about the size of a correlation?
What is true about the size of a correlation?
- It is a function of the variability of the two distributions to be correlated (correct)
- It is not affected by the range of scores to be correlated
- It is always the same regardless of the variables being correlated
- It is always a strong relationship between two variables.
What does a correlation between two variables indicate?
What does a correlation between two variables indicate?
- That one variable causes the other
- That there is a strong relationship between the two variables
- That one variable is dependent on the other
- That changes in one variable are caused by changes in the other variable (correct)
What does restricting the range of scores to be correlated do?
What does restricting the range of scores to be correlated do?
- Increase the observed degree of relationship between two variables
- Decrease the observed degree of relationship between two variables (correct)
- Make the correlation stronger
- Make the correlation weaker
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