I am going to investigate into factors about people's lives affecting and linking to I.Q.

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I am going to investigate into factors about people’s lives affecting and linking to I.Q. My hypothesis is that people with a higher I.Q watch less hours of television a week, have less siblings and received good Key Stage 2 results. I am investigating this line of enquiry because I am interested to see the correlation, if any, between I.Q, the amount of television watched and the number of brothers and sisters people have. Also I believe people with a higher I.Q would be more intelligent, therefore receiving higher Key Stage 2 results, and would like to see whether I am right or wrong to believe this. I assume they would watch less hours of T.V a week if they have a higher I.Q, as I believe they would be spending more time doing homework and revision. Also I think the higher the I.Q the less siblings they will have because I think they would receive more encouragement from their parents. I aim to avoid bias in my investigation by following certain sampling methods. However there are some factors that could still cause bias that I cannot change/prevent for example if there are errors in the population or dishonest answers as the data I am using is a census questionnaire. Also some key stage 2 results have been left blank, therefore I am going to assume that all blank fields equal nothing which could be caused by them not taking the exam, so this may effect my results and graphs. Another thing I assume for my hypothesis is that people’s families are all living together including all siblings. This could cause an effect on things such as amount of TV watched if they do/do not all live together but this is a factor I cannot tell from the census. To determine a population for my course-work I shall be using secondary data, a questionnaire filled in by pupils at Mayfield High School, which contains a lot of information about different aspects of their life, for example how many siblings they have, hair colour, eye colour, Key Stage 2 results and so on. The specific fields I require to investigate my hypothesis are:

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  • I.Q
  • Average number of hours of T.V watched per week
  • Number of siblings
  • Key Stage 2 results in English, Maths and Science

As there are 1183 pupils who filled in this questionnaire I shall use other fields, to help sort my data into smaller, more manageable samples as 1183 is far too larger number to work with. The other fields I will use are year group and gender as I intend to split all the pupils into their 5 different year groups (7, 8, 9, 10 and 11) and then into boys and girls within the year ...

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