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Relationship between caffeine consumption and activity level

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A researcher is interested in the relationship between caffeine consumption and activity level for elementary school children. A sample of 20 children is obtained, and the children are separated into two roughly equivalent groups. The children in one group are given a drink containing 300mg of caffeine, and the other group gets a group with no caffeine. The researcher then records the level of activity for each child during a 30-minute session on the playground. Is this an experimental or a correlational study? Explain your answer.

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Solution Summary

This solution outlines a study and then explains whether it is experimental or correlational.

Solution Preview

This study would be considered an experimental study because the researcher obtained equivalent groups, manipulated the independent variable (i.e., caffeine versus ...

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