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What are Standard Scores?

What are Standard Scores?. Standard scores provide a means to combine multiple scores with unlike scales?. Standard Scores . Two examples of standard scores: Z scores T scores. Variable. A variable is a measureable characteristic determined and defined by an experimenter. Z scores.

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What are Standard Scores?

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  1. What are Standard Scores?

  2. Standard scores provide a means to combine multiple scores with unlike scales?

  3. Standard Scores • Two examples of standard scores: • Z scores • T scores

  4. Variable • A variable is a measureable characteristic determined and defined by an experimenter

  5. Z scores • Z scores represent standard deviation units on the normal curve

  6. Z score formulation • High score is a good score Z= X-X s Low score is a good score Z= X-X s

  7. T score formulation • High Score is a good score T = 10 (X-X) s • Low score is a good score T = 10 (X-X) s

  8. Z scores and T scores represented on the normal curve Z score units -3 -2 -1 0 1 2 3 T score units 20 30 40 50 60 70 80

  9. Benefits of Z scores and T scores • Z scores and T scores are continuous scores and therefore can be added, subtracted, multiplied, and divided • These scores provide a means for combining scores that have unlike terms.

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