https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx Probs and stats - unit 4 - experimental study - Arianna Mikkelsen and Phoebe Davis en-us 2019-04-16 15:58:28 UTC 2019-04-17 15:48:48 UTC hello@padlet.com mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352026220 Question
How do energy drinks affect anxiety levels?]]> 2019-04-16 16:05:05 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352026220 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352027061 Experimental units
We randomly found 30 students who both had anxiety and did not.]]> 2019-04-16 16:07:22 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352027061 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352027582 Treatments
15 subjects had a energy drink every other day for a month. The other 15 subjects had no energy drinks for a month.]]> 2019-04-16 16:08:48 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352027582 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352027965 Explanatory variable 
Our explanatory variable was which treatment each group received, energy drink or no energy drink.]]> 2019-04-16 16:09:52 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352027965 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352028388 Response variable
At the end of four weeks we had each person report their anxiety levels over the course of the month.]]> 2019-04-16 16:11:02 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352028388 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352028816 Selection method
Our thirty students were randomly volunteered after being handed a flyer for the experiment. ]]> 2019-04-16 16:12:12 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352028816 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352029780 Randomized/lurking variables
We handed out flyers to random high school kids. They then volunteered for the experiment based off of their wanting to do it. ]]> 2019-04-16 16:14:37 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352029780 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352031931 Control group
Our control group is the fifteen students who will not be drinking the energy drink. There is no placebo.]]> 2019-04-16 16:20:14 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352031931 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352330446 Sample size/ MOE
With a sample size of 30, our margin of error was 18.2%. This is an ok margin of error, but is not the best.]]> 2019-04-17 15:38:23 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352330446 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352330988 Matched pair design
We matched people up based upon their natural anxiety levels, and this allowed us to gauge anxiety levels based on the energy drinks.]]> 2019-04-17 15:39:50 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352330988 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352331439 Replication 
We will replicate this experiment with 30 new random subjects. This will be able to give us more results and better data.]]> 2019-04-17 15:41:00 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352331439 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352332039 Results
At the end of the one month period of the experiment, we were able to calculate based off of reports whether anxiety levels increased, decreased, or stayed the same for those who drank energy drinks. ]]> 2019-04-17 15:42:33 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352332039 mikkelsenarianna https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352332730 Statistical significance 
We randomized the 30 participants in the study, and will do so again when replicated.]]> 2019-04-17 15:44:02 UTC https://padlet.com/mikkelsenarianna/vhqlhsr9bdxx/wish/352332730