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# Reaction Times

Extracts from this document...

Introduction

T

His is the data I collected to prove my first hypothesis which was that I (and most people) work better at different times of day. I predicted that I would get my lowest reaction time during the afternoon because I believe that is the time when people are most alert and their reactions quickest. I also believe that the highest reaction times will be at night when people are feeling sleepy and will have slow reactions.

Control:

0.35, 0.28, 1.03, 0.29, 0.22, 0.17, 0.2, 0.19, 0.2, 0.19, 0.16, 0.21,  0.23, 0.21, 0.18, 0.17, 0.16, 0.59, 1.16, 0.28, 0.18, 0.17, 0.18, 0.19, 0.18, 0.21, 0.18, 0.22, 0.2, 0.2, 0.45

I collected this at 17:02 because that was the time; I felt was when I was not too tired and not too awake! I decided that I would show the data I collected for the control first in a steam and leaf diagram and then present it in a line graph.

Data collection

Middle

7:00-12:00

0.21 0.43 0.26 0.24 0.38 0.03 0.34 0.1 0.22 0. 21 0.34 0.41 0.23 0.34 0.25 0.1 0.23 0.34 0.5 0.26  0.34 0.22 0.47 0.27 0.16 0.94 0.34 0.41 0.28 0.52 0.27 0.34 0.25 0.13

12:00-16:00

0.35 0.3 0.31 0.16 0.14 0.31 0.34 0.22 0.3 0.01 0.25 0.22 0.26 0.2 0.24 0.43 0.49 0.21 0.17 0.19 0.21 0.38 0.38 0.59 0.2 0.21 0.26 0.03 0.21 0.2

16:00-22:00

0.23 0.2 0.4 0.2 0.22 0.19 0.23 0.36 0.28 0.25 0.25 0.23 0.23 0.38 0.18 0.32 0.32

0.26 0.22 0.24 0.19

0.23 0.23 0.21 0.19 0.16 0.34 0.42 0.13 0.19 0.65

22:00-7:00

0. 22 0.30 0.27 0.18 0.18 0.22 0.24 0.25 0.27 0.28 0.34 0.54 0.13 0.26 0.19 0.19 0.56 0.97 0.21 0.24 0.22 0.22 0.05 0.13 0.23 0.84 0.25 0.26 0.32 1.13 1.27

The table above shows data I collected, in chronological order.

I repeated my experiment 30x for each time frame because I thought that my experiment would not be very accurate because I could not repeat my results on different days, over an over

Conclusion

I have proved my hypothesis because I have shown that I received my lowest (and fastest) reaction times and my fastest average during the afternoon, like I predicted and also I proved that I received my slowest reaction time and my slowest average during the night , also like I predicted.

This is the same graph again but this shows my performance throughout the day- I have just joined up the other graph so you can see how my performance peaked in the afternoon and slowed down in the night.

KAVIAYI KUNNUL AM-P

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## Here's what a teacher thought of this essay

There are some nice ideas in this work but there is a very misleading use of graphs without a horizontal scale. However, some good examples of stem and leaf diagrams even if the keys are wrong. 2 stars

Marked by teacher Mick Macve 18/03/2012

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