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Researchers found a correlation coefficient of .46 when studying the relationship between caffeine ...

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Researchers found a correlation coefficient of .46 when studying the relationship between caffeine ...

Researchers found a correlation coefficient of .46 when studying the relationship between caffeine intake and restlessness. Which of the following best summarizes the data?

▸ As caffeine intake increases, restlessness increases.

▸ As caffeine intake increases, restlessness decreases.

▸ As caffeine intake decreases, restlessness increases.

▸ There is no relationship between caffeine and restlessness.

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Psychology

Edition: 1^st

Authors: Hudson, Whisenhunt

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