Correlations

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  • Created by: chabs
  • Created on: 22-03-14 17:17
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  • Correlations
    • Types
      • Positive: As the value of one variable increases, the other tends to increase too (not necessarily at the same rate)
      • Negative: As the value of one variable increases, the other tends to decrease (not necessarily at the same rate)
      • Zero: There is no relationship between the variables.
    • + They can be used to where exp manipulation may be unethical. + They can suggest further avenues of study to find causation + Other variables can be predicted  from one
    • - They only examine the strength of a relationship (not cause and effect) - The relationship shown may be misleading / effected by extraneous variables
    • One tailed hypothesis: There will be a significant   + / - relationship...
    • Two tailed: There will be a significant relationship...
    • Co-variables are the variables being measure

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