https://padlet.com/kgter583/kcd42lidelkl probs and stats-Kate Ternes en-us 2020-03-17 22:34:38 UTC 2025-06-20 19:52:01 UTC hello@padlet.com kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/463825415  Does drinking 200mg or more of caffeine a day affect quality of sleep a person gets?]]> 2020-03-17 22:52:45 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/463825415 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466670684 150 men and women, who work full time, and consume caffeinated beverages regularly.]]> 2020-03-19 17:04:16 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466670684 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466674446 I will sit at different local coffee shops and ask the costumers who order large coffees, if they would like to be a part of my study. If they were willing to participate, then they would receive free coffee for the next 6 weeks. I will also ask each person how well rested they feel on a scale of 1-10. 1 being extremely tired, and 10 being very well rested.]]> 2020-03-19 17:06:21 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466674446 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466680104 50 people would be randomly selected to drink their normal coffee, while the other 50 people would be given decaffeinated coffee. They would drink their designated coffee for the next 6 weeks. Then, the last 50 will not drink any coffee.]]> 2020-03-19 17:09:28 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466680104 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466686525 The Explanatory variable would be based on the type of coffee each participant is drinking.]]> 2020-03-19 17:12:57 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466686525 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466690733 The Response will be determined after 6 weeks, based on the sleep habits of each group.]]> 2020-03-19 17:15:16 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466690733 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466693456 The control group is the group that is not drinking any coffee. The Placebo group is the group who is unknowingly drinking decaffeinated coffee.]]> 2020-03-19 17:16:49 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466693456 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466707147 There is a blind in this study because the people drinking coffee do not know if they are drinking caffeinated or decaffeinated coffee. This is not double-blind because I know which treatment each person is getting.]]> 2020-03-19 17:24:25 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466707147 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466714135 In each group there will be an equal amount of people based on the rating they gave for their quality of sleep. There will be a range of 1s to 10s in each group to make sure there will be accurate results.]]> 2020-03-19 17:28:22 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466714135 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466724872 This study could have had matched pairs based on the type of coffee, or if they had kids, or other factors that could affect sleep habits, but I did not do that. I simply just asked people at coffee shops if they would participant without pairing them.]]> 2020-03-19 17:34:42 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466724872 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466730624 This could have been a crossover design but it would have taken too long. No everyone would have been willing to give up their morning coffee for longer than 6 weeks. Also providing free coffee to 150 people for over 6 weeks would have been too costly. ]]> 2020-03-19 17:38:15 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466730624 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466795163 With my sample size of 150, the margin of error is 8.1%. I could lower the margin of error by having a larger sample size.]]> 2020-03-19 18:15:39 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466795163 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466803438 I could replicate this experiment in another city with new subjects. Doing this experiment more than 1 time can make it more reliable. If the results are close to the same then it is more accurate.]]> 2020-03-19 18:20:56 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466803438 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466807661 After 6 weeks, I will ask each participant to rate their quality of sleep again. For the control group, at first they rated their sleep 7 to a 8.2. The decaffeinated group went from 6.7 to 7.1. The caffeinated group went from 2.9 to 3.4.]]> 2020-03-19 18:23:36 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466807661 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466850990 2020-03-19 18:53:06 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466850990 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466855628 Although the final results were clear, this cannot be certain because of the margin of error. To secure these results, the study must be done several more times.]]> 2020-03-19 18:56:34 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466855628 kgter583 https://padlet.com/kgter583/kcd42lidelkl/wish/466856231 Based on the results people that unknowingly drank caffeine had a lower quality of sleep because it kept them up at night. People who unknowingly drank decaffeinated coffee had a higher quality of sleep. The people who did not drink any coffee had the highest quality of sleep and also increased the quality during the 6 weeks.]]> 2020-03-19 18:56:57 UTC https://padlet.com/kgter583/kcd42lidelkl/wish/466856231