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The effect of alcohol on reaction times

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The effect of alcohol on reaction times Apparatus List: 85cm High Table 100cm Wooden Ruler Pen Paper The table is used to drop the ruler from so we know that the height the ruler is dropped from is the same each time we do the experiment. We will hold the bottom of the ruler level with the surface of the table before it is dropped. The ruler is to be used as the measurement of people's reaction times in millimetres. The pen is to mark out where the thumb and first finger must be when the ruler is released and is also used to record the results on the paper. ...read more.


Write the results down on the paper and repeat the experiment four more times. When the experiment has been carried out five times we will make the person catching the ruler drink four units of alcohol. After he has finished drinking the last unit we will wait twenty minutes for the alcohol to take effect. We do this to see what difference alcohol has on the reaction times. Now we repeat the experiment above again. We will test four people. A young male and an older male, ages 15 and 44, and a young female and an older female, ages 11 and 38. The factors we will keep the same to make sure the experiment is a fair test are: Height ruler is dropped from ...read more.


Preliminary Work Prior to making these plans for the experiment, we carried out a preliminary test. This test helped us a lot in understanding what the aim of the experiment was and gave us a rough idea of what we were going to do. Also, we can learn from the mistakes that we made in the preliminary work, so that we can ensure it is a fair test in the experiment. Results Attempt Distance 1 8.6cm 2 9.6cm 3 7.9cm 4 10.4cm Conclusion From our results we can make a safe conclusion that the reaction times of a person are very fast when they aren't under the influence of alcohol. Also, because there are no anomalous results we can make a safe average reaction time from this. Average reaction time = 9.125 seconds. ...read more.

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