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Home Q & A Board Science-Related Homework Help Psychology
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yanamae yanamae
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6 years ago
An experiment is being conducted to determine the effects of caffeine intake on student performance. One group is made to drink 5 cups of coffee, the other group drinks 1 cup of coffee. They then take the exam. The independent variable is ________.
 
  a. the amount of caffeine consumed.
  b. the group membership.
  c. how alert the students are during the exam.
  d. the students' performance on the exam.
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ytrtryytrtry
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yanamae Author
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6 years ago
this is exactly what I needed
missnoname
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Yesterday
Good timing, thanks!
DragonHeart
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2 hours ago
Thanks
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