Research Methods Module 2: Typical and Extreme Scores

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MBB2

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6 Terms

1
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Distributions of Data

  • Histogram

2
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Central tendency

where most people are placed at and the peak of the diagram

3
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Normal Distribution

  • Majority of observations are in the middle

  • Observations reduce in frequency towards the tails

  • The distribution is symmetrical

4
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Typical scores

  • towards the centre scores (most frequent)

5
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Extreme Scores

  • is very high or low scores

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The 2s Rule of Thumb

  • In a distribution with a normal shape, 95% of scores fall within approximately 2 stranded deviations (s) of the mean