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Are ankle weights effective for improving a cheerleaders tumbling power?

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Our experimental units are cheerleaders in the dvusd on the high school level varsity team

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Our Selection Method was listing all schools in the dvusd in alphabetical order, then numbered off the high schools. We used a random number generator to select five of those schools.

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106 girls from a varsity cheer team will complete strength excercises with 2 pound ankle weights every practice for two weeks. And the other 106 girls will complete the same workouts without ankle weights.

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Our Explanatory Variable is the type of workouts they will complete

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Our Response Variable is at the end of the two weeks the tumbling groups will complete two of the same passes and we will evaluate who has more power

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The 106 girls with no ankle weights are the control group

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Our Lurking Variables are

1. Height

2. Age

3. Weight

4. Experience

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Our experiment is slightly blind due to the fact that some girls go to different schools so the other subjects from other schools will not know who had the weights. Also it’s hard to make double blind because they know if they have weights or not, I gues we could have another group in 5 pound weights and disguise them.

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Our sample size or MOE is 212 as the sample size and 6.8 as the MOE

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We will replicate this experiment with 5 new schools , to confirm the results are valid and sign. We find new schools by randomly picking out of the other schools in the district that weren’t used in the 1st experiment.

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We matched up people based off of their tumbling level, gender, and height prior to the study and randomly picked one to have weights and one to not have weights. This will help compare results when we are done.

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Schools had their spirit line practice with the weights all across the district. Most of the participants tumbling height and power continues to increase due to the weights. Now most teams practice with weights in order to improve their performance during competitions.

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At the end of the two weeks of practicing with or without the weights, the tumblers are scored on their power level on a 1-10 score. The tumblers with the weights during practice had an increase in power level to a score averaging 8 while those tumbling without only increased their power to a score averaging 6.