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Does drinking coffee improve test scores?

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300 college students

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Grouped by Gpa then pick 100 studnets from each group.
Group 1: 1.0 - 1.9 GPA
Group 2: 2.0 - 2.9 GPA
Group 3: 3.0 - 4.0 GPA

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Caffeinated vs. half vs. decaf

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Caffeine amounts

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Test grade

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Subject of test, sleep amount, do they drink coffee regular, weight

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No caffeine

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Our experiment will be a blind experiment. We will know what each subject gets but they will not know what kind of caffeine drink they will get.

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We will block by GPA. This will be beneficial because we will give the same GPA groups the same test and different caffeine amounts.

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We would replicate our study by getting another’s group of 300 college students and performing the same study, which would m,as our data more reliable and make us more confident in our research.

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We all randomized all 300 people and the results. Our results were statistically significant because the results were big enough to prove that they were not achieved by random chance.

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Our results were published educational journal. Most of our participants got the score we expected them to get based on their caffeine consumption. Caffeine is now widely used to improve test scores andoverall grades.