https://padlet.com/nermj765/8z9lk8oahozhagxp Unit 4 - Experimental Study - Prob/Stats - Spring 2020 - Nerman Javor en-us 2020-05-04 10:45:14 UTC 2020-05-04 11:34:50 UTC hello@padlet.com nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548890289 Does brightness determine how quickly someone can fall asleep]]> 2020-05-04 10:54:02 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548890289 nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548893121 200 subjects were randomly chosen among an office population. These 200 subjects were of varying age and background.]]> 2020-05-04 10:55:34 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548893121 nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548901323 The three treatments include a screen with 100% brightness, 50% brightness, and the final treatment is for them to refrain from using any technology.]]> 2020-05-04 10:59:48 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548901323 nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548905185 The explanatory variable is the brightness of the subjects screens.]]> 2020-05-04 11:01:45 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548905185 nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548906264 The subjects will use a sleep app to determine how long it took them to fall asleep. After 3 nights of the same treatment these 3 nights will be averaged out. The response variable is the amount of time it took them to fall asleep.]]> 2020-05-04 11:02:20 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548906264 nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548913717 With help from a local office/business employees were asked if they'd like to participate in a 2 week trial until 200 subjects were chosen]]> 2020-05-04 11:06:11 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548913717 nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548917632 Once potential candidates were chosen these candidates were numbered off and a random number table was used until 200 subjects were chosen. Potential lurking variables could include trouble sleeping (such as due to preexisting conditions such as insomnia) and stress one may experience while working. However, due to each subject being their own control group these lurking variables are eliminated.]]> 2020-05-04 11:08:18 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548917632 nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548928509 Subjects are not capable of being blinded due to each subject knowing the treatment they are undergoing such as brightness of their screens. The researchers are also not capable of being blinded due to the size of the sample group, the treatment they must undergo, and the calculations needing to be done during the experiment.]]> 2020-05-04 11:13:51 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548928509 nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548936353 Each person will be acting as their own control group which will be the nights that they refrain from using technology and looking at screens.]]> 2020-05-04 11:18:08 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548936353 nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548943457 We will replicate this experiment by including subjects from various other businesses/offices. The new sample size will consist of 500 people.]]> 2020-05-04 11:21:47 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548943457 nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548946506 During the course of the experiment on average people who viewed a screen at full brightness took 23 minutes and 47 seconds to fall asleep, participants who viewed a screen at half brightness fell asleep in on average 21 minutes and 12 seconds, and finally participants who refrained from using a screen fell asleep in, on average 18 minutes and 23 seconds. These results are extremely significant because it shows that people who refrain from looking at screens fall asleep roughly 5 minutes quicker than their counterparts who viewed a screen at full brightness]]> 2020-05-04 11:23:19 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548946506 nermj765 https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548960485 Our results were published in various scientific journals. Many people refrain from the use of screens before bed or reduce brightness allowing a larger amount of people to fall asleep quickly and easily.]]> 2020-05-04 11:30:16 UTC https://padlet.com/nermj765/8z9lk8oahozhagxp/wish/548960485