In which of the following scenarios would it be best to use r squared (the coefficient of determination) instead of r? A. When a researcher is trying to determine the validity of a new cognitive test by correlating scores obtained on the test to score is obtained using the well known mini mental state exam scores. B. When a researcher is evaluating the interrater reliability of a test by comparing scores from one rater to scores of another rater.   C. When a researcher is making a prediction about the level of caregiver burden in a community based on the level of income of most participants in the community. D. None of the above.

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