https://padlet.com/egsmi155/shk7g15vpa98 Unit 4 - expierimental study - probs/stats - fall 2017 - Emma S. And Harley en-us 2018-11-13 14:35:09 UTC 2024-11-21 20:33:47 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/File.png egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303750565 How does the amount of sleep affect how someone does on a logic test?]]> 2018-11-13 14:40:30 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303750565 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303752569 50 subject are randomly selected to not sleep, 50 different subjects are randomly selected to sleep for 4 hours, 50 different subjects are randomly selected to sleep for 8 hours, and 50 more different subjects are randomly selected to sleep for 12 hours.]]> 2018-11-13 14:43:20 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303752569 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303754824 Our explatory variable is the amount of sleep each person received.]]> 2018-11-13 14:45:53 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303754824 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303755557 The response variable is their scores on the logic test out of 100]]> 2018-11-13 14:46:40 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303755557 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303756537 We selected 200 men and women who were all students at Boulder Creek to be randomly selected to sleep and complete a logic test, their only commitment was a time based sleep session and a one hour test after. ]]> 2018-11-13 14:47:47 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303756537 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303759798 Our experimental units were found by randomly choosing 50 math students from each grade level (freshman, sophomore, junior, and senior) by their student ID number and asking them if they would like to be a part of a sleep study. ]]> 2018-11-13 14:50:52 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303759798 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303762606 Our control group is the 50 people who will be sleeping 8 hours since that is the recommended amount of sleep teenagers are supposed to get. We do not have a placebo as people know how long they will have slept. ]]> 2018-11-13 14:53:31 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303762606 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303764963 We are not able to blind our subjects because the people getting no sleep will be aware of how much they slept. Their is also the possibility of students talking to each other before the test on how they are feeling or on how much sleep they got. Their is no double blind because the person incharge of waking up the subject will need to know what time to wake them up in order for the experiment to be successful. ]]> 2018-11-13 14:55:45 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303764963 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303771094 We had the school give us a list of all the students ID numbers and then used a random number generator to select 50 students from each grade level for each treatment group. Potential lurking variables are GPA and how hard each person sleeps. ]]> 2018-11-13 15:01:32 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303771094 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303780487 With a sample size of 200 our margin of error is 7.07%. The lower margin of error is good and means the results should be a good representation of the population. ]]> 2018-11-13 15:10:27 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303780487 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303788460 To replicate this study we will need 200 more students from a different school (O’Connor) to confirm our results are significant and correct. We will use the same selection method on math students. ]]> 2018-11-13 15:18:45 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303788460 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/303790456 At the end of the study the average score for the people who slept for 0 hours was 22, the average for 4 hours of sleep was 49.6, the average for 8 hours of sleep was 92.6, and the average for 12 hours of sleep was 79.6. The highest performing group was the 8 hours group by an average of 13 points from the next highest performing group. ]]> 2018-11-13 15:20:53 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/303790456 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/304895786 2018-11-15 16:43:07 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/304895786 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/305276001 In the study we matched people by their gender, age, and IQ. There were 4 people in each group and each one of the 4 was randomly assigned a different treatment. This will help us compare accurate results in the end. ]]> 2018-11-16 14:54:01 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/305276001 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/305279835 We randomized all 200 people and the randomized difference was 13 points. This in very significant as the 8 hours group was the only group who scored a 85 or higher everytime and consistently scored higher than the other treatment groups. ]]> 2018-11-16 14:59:55 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/305279835 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/305280917 Our study was published in a journal called Medical World News to further back up that 8 hours is the right amount of sleep teenagers should be getting, any less or any more and they don’t perform at their best. Parents are now making sure their teenagers are going to bed at the right time to make sure they are at their full potential. ]]> 2018-11-16 15:01:45 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/305280917 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/305290376 2018-11-16 15:17:28 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/305290376 egsmi155 https://padlet.com/egsmi155/shk7g15vpa98/wish/305290948 2018-11-16 15:18:23 UTC https://padlet.com/egsmi155/shk7g15vpa98/wish/305290948