I and S EssayIntroductionI did some research on the internet and on the homepage “Science Buddies” I found an idea that I think was a good match with our task. The idea is about testing if caffeinated coffee makes your reaction time better. So that is what I am going to be testing following the Scientific method. QuestionDoes caffeinated coffee make your reaction time better? This is the main question that I want to answer. Another interesting question I want to ask is, if the conclusion meet my expectation that caffeine is making the reaction time better, is: Is there a possible placebo effect? Background researchCaffeine is a natural substance that is found in coffee, tea and cacao plants. It affects the brain and the central nervous system and makes you more alert and stops you from feeling tired.Today you find caffeine in coffee, tea, chocolate and also in sodas and energy drinks.It takes 20 minutes for the caffeine in one cup of coffee to reach the blood and approximately one hour to get the full effect.There are many studies that are showing that caffeine has an effect on reaction time.HypothesisI think that if you give a group of people caffeinated coffee, they will have a faster reaction time than another group that don’t get any coffee.I also think that if a group of people believes they get caffeinated coffee, but in reality they get decaffeinated coffee, they will do better than the ones that didn’t get any coffee, but worse than the group that actually got caffeinated coffee.Test with an experimentI will do an experiment to test if caffeine improves the reaction time by using a ruler. You stand in front of a person and drop the ruler and see where the person catches it. You hold the ruler with the 0 cm downwards and the 30 cm upwards. The faster reaction time the person has to catch the ruler, the lower the “score” is. To do the experiment I need 3 groups:Control group – will not get coffee to get the reaction time result without the effect of caffeine Experimental group 1 – will get normal coffee with caffeine to get the reaction time result with the effect of caffeineExperimental group 2 – will get decaffeinated coffee, but I will tell them it is normal coffee with caffeine, to test if there is a placebo effect in the reaction time result It is also very important that the people in the groups have the same characteristics such as age, gender, how much you do sports etc., so that the results are comparable. If the people in the groups have different characteristics the result is not comparable, for example if the people in the control group are all 15 year old people and in the experimental group 1 are all 90 year old people, the result would probably show that you are faster without coffee.Each group will have 4 people. Characteristics of the people in the group: they will be between 18 and 24 years old, 2 males and 2 females that do sport equally as much.Analyse data and draw conclusionThe group that had the fastest reaction time was experimental group 1, that got caffeinated coffee, with an average score of 10.8 cm. The control group, that didn’t get any coffee, got the slowest reaction time, with an average score of 20.0 cm. The experimental 2 was faster than the control group, with an average score of 16.5, but not as fast as experimental group 1.The conclusion is that caffeinated coffee improves your reaction time and that there is a placebo effect.Results The result is that the control group got the slowest reaction time, which in this case means that caffeinated coffee does improve your reaction time.The experimental group 1 shows that you get a faster reaction time when you have had caffeinated coffee.Last group, experimental group 2, shows that if you think that you get caffeinated coffee, but in reality you didn’t, you will do better than without any coffee at all. This shows that there is a placebo effect, because they should have had the same reaction time as the control group, but they were faster. This shows us that yes, you should drink caffeinated coffee before a reaction test because it will improve your speed. The test also shows us that if you think you get caffeinated coffee you will improve your speed, but not as much as when you get caffeinated coffee.Communicate result I was surprised that my expectation was correct, which means that if you drink caffeinated coffee your reaction time will improve. This is really good if you are going to have a reaction time test or connecting it to real life, when you need to do something that requires a fast reaction time and you are tired, for example when you play a video game in the afternoon after long day at school.Double blinded or not & Causation or correlation The test was single blinded, because I knew who I was giving the caffeinated and decaffeinated coffee to. But it could have been double blinded if I did not know who I gave the caffeinated coffee or decaffeinated coffee to. I think the result of improved reaction time was a correlation, because it would make scenes if caffeinated coffee would boost your reaction time. I also believe that if you get the same results all the time when giving caffeinated coffee that shows that there is a correlation. Bias that could mess up my experimentAn observation bias that can have messed up my experiment is that I was observing the people I was testing all the time and therefore they might have been thinking that I was up to something. This can have led to contaminating my experiment.Questions on sources and possible improvement The questions below are connected to footnote number 3.Who created this message? Francine Juhasz, that is a doctorate in clinical psychology and a health and nutrition journalist. What attracts my attention? What attracted my attention was that the website had interesting information related on my topic, the article was not too long and it was easy to understand. I also thought it was interesting information to use, because the article was just written (she had written in October 2017)Was this source meant to be public or private ? This article I think is meant to be public for the world to see what the effects of caffeine are. People might understand this massage differently. Due to how it is written people might think it is very bad to drink caffeinated coffee.One thing I can improve on was my organization, because I was disorganized in the beginning.JournalI think it went well! I was trying my best and it was fun, but on a few parts I was a bit unfocused. I was not very organized in the beginning, but when I made a plan it went a lot better. It was good to use the scientific method, because then I understood what I should do and in which order. How could misunderstanding what has been researched through the Scientific Method impact societies? A world without the scientific method had not been good because people would come up with crazy conclusion such as farts cure cancer which it does not and actually some people believed that which is mad and thanks to the scientific method the person that said farts cure cancer was proven wrong because he or she did not have any evidence. Can you give a clear example of mass myths present in the media today using specific terminologyVaccines don’t cause autism because the scientist did not have any evidence which lead to people believing him and it became a fallacy which.