hypothesis and aims

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  • formulating research questions- aims & hypothesis
    • aims
      • general idea for research (goal)
      • always starts with 'to investigate'
      • aim will always be given...
        • first sentence of stimulus material  or paragraph
    • hypothesis
      • a testable statement e.g research can be carried out on
      • must be operationalised (made testable)
        • clear, precise and measurable
      • must have the word 'significant' in it
      • must have all variables being studied in it
      • you can only ever accept or reject a hypothesis - NEVER prove it
    • difference between Aim & hypothesis
      • aim
        • clear statement about WHY research is taking place
        • example: to investigate if boys are more aggressive than girls
      • hypothesis
        • precise testable statement containing predictions
        • example: boys will be significantly more aggressive after watching  boxing matches on tv for 2hrs than girls who watched boxing matches on tv for 2hrs
    • types of hypothesis
      • directional (one tailed)
        • predicts actual direction of results
          • e.g which group will score higher
        • carried out when there's previous research that is consistant
      • non directional (two tailed)
        • predicts that there is a difference or relationship between two sets of results but it does NOT state direction
        • used when either outcome could occur and there is no pervious research or there is conflicting research

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