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The effects of caffeine on reaction time

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  • Essay length: 2530 words
  • Submitted: 01/10/2004
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GCSE Patterns of Behaviour

The first 200 words of this essay...

The effects of caffeine on reaction time

Abstract:

The investigation studied the effects that caffeine had on human reaction time on their mathematical skills. It was done using 20 individuals af age groups 15-18. Instant black coffee was used as the caffeine source. Their reaction times were recorded before and after consuming caffeine. The standard deviations of the reaction times were obtained and a Z-test for matched samples was carried out. The results showed significant differences in the reaction times of the individuals. It was concluded that caffeine did have an effect on the reaction time of an ndividual.

Aim:

My aim is to investigate the effect of caffeine on students solving maths problems.

Plan:

Hypothesis:

My alternate hypothesis is that ingesting caffeine will have an effect on the students decreasing their reaction time.

My null hypothesis is that ingesting caffeine will have no effect onther reaction time of the students.

I predict that caffeine does effect the reaction time by decreasing it and so the students will solve their problems faster and would be more alert, fresh so they would probably make less mistakes.

Biological Knowledge:

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