• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

An Investigation Into The Effects Of Sugar Upon Aptitude Levels

Extracts from this document...


An Investigation Into The Effects Of Sugar Upon Aptitude Levels


        The aim of this study was to discover whether sugar intake has an effect upon people’s cognitive aptitude. This was done by dividing the sample into three conditions (high sugar drink, low sugar drink and control.) The participants were then asked to drink the drink given (with the exception of the control condition.) and then fill out an aptitude test. Once all the results had been gathered they were put through the Mann Whitney (U) test. The results showed that sugar has a detrimental effect on aptitude.


        Physiological psychology is the study of how the brain affects the body, and how the two work in tandem. This has been explored in this study, as sugar levels have an effect upon both physical and mental performance. Sugar can be burned by the body to produce energy, but at the same time it has a negative effect on the brain, which is clear from the results. Shachter and Singer’s investigation (1962) is similar to this study, in that they tested the effects of epinephrine on participants ability to operate in a certain environment, and certain elements of their

...read more.


Participants – The sample used for this study was a group of 12 participants aged between 16 and 25; 12 female and 12 male. These were divided into three groups, each consisting of two males and two females. The participants were all taken from my peer group.

Materials – To carry out this experiment the following things were needed:

  • Two separate aptitude tests, one on technological skills and one on word association
  • Two drinks, one with a high sugar content and one with a low sugar content.

Procedure – We told the subjects to drink their drink if they were in the high or low sugar group, and to wait 5 minutes to allow the sugar time to enter the subject’s bloodstream. Once the 5 minutes was up the subject was asked to perform the aptitude tests in as much time as they required. Once the data had been collected it was placed in a table, along with the condition and gender of the subject. The scores gathered were all out of 20 (10 questions per test).

Controls – There were an equal amount of males and females of a similar age group in the sample used. All subjects were given an equal amount of drink, as varying amounts would contain different amounts of sugar, which could affect the results.

...read more.



  • Hugh Coolican (1995) – Introduction to Research Methods and Statistics in Psychology (Hodder & Stoughton)
  • Richard Gross (1990) – Key Studies in Psychology (Hodder & Stoughton)
  • Anon (1980) – Test Your Aptitude (Reader’s Digest)

...read more.

This student written piece of work is one of many that can be found in our GCSE Height and Weight of Pupils and other Mayfield High School investigations section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Height and Weight of Pupils and other Mayfield High School investigations essays

  1. Is there a link

    exams, but also suggest that since these scores are the same, there is a link between ability in Maths and ability in Science. Moving away from calculations and onto diagrammatic representation, I will now extend my analysis to the use of scatter diagrams.

  2. Liquid chromatography is a technique used to separate components of a mixture to isolate ...

    However, the results show a general decrease in efficiency when a larger loop is used for a small volume. So, the most accurate values for plates/m were converted to % efficiency and plotted. The % efficiency is calculated relative the 5�l volume as the 2�l value is low compared to the others.

  1. What affects a persons ability to estimate?

    - When I look at the Females Skew graph, I can see that the group which had the largest number of estimates was (7.5 - <10). This group had 42% of the Females data. - Both groups to the side of (7.5 - <10)

  2. Mayfield igh Investigation

    immediate thing I notice about the year 11 boys' data is that the outcomes from are much higher than any other set of data within this. The modal class is 175.5?h>195 whereas with year 7 boys and girls and year 11 girls were between 155.5? h>170.5 between all the data.

  1. mayfeild statistics

    This means that the value of the mean may not be accurate as there may be outliers in my set of results. Data for girls: Year Group Surname Forename 1 Forename 2 Years Height (m) Weight (kg) 11 Ali Amera 15 1.62 56 11 BrownIsabella 15 1.65 66 11 Dawson

  2. Introduction to arodynamics - Investigation into the design features of aircraft.

    However perhaps more importantly as a superiority fighter the F-15 needs the ability to fly at slow speeds at high angles of attack (AoA), as well as good combat persistence, the ability to outlast the enemy, thus forcing him to break away due to low fuel levels.

  1. Trolley Investigation

    the end position of the trolley would be measured using metre rulers and the difference of these two measurements would give the height, h. The light gate would also be connected to the QED and positioned at the end position of the trolley.

  2. Statistical investigation.

    14 151/282 *14= 7.496454 7 6.503546 7 8 145 125 270 14 145/270*14= 7.518519 8 6.481481 6 9 118 143 261 13 118/261*13= 5.877395 6 7.122605 7 10 106 94 200 10 106/200*10= 5.3 5 4.7 5 11 84 86 170 9 84/170*9= 4.447059 4 4.552941 5 Total 1183 60

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work