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Chapter 5 - Coggle Diagram
Chapter 5
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raw scores
original, unchanged scores that are the direct result of measurement
z-scores
make raw scores more meaningful, they are often transformed into new values that contain more information; resulting z-scores tell exactly where within a distribution the original scores are located
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2 purposes:
- Each z-score tells the exact location of the original X value within the distribution.
- The z-scores form a standardized distribution that can be directly compared to other distributions that also have been transformed into z-scores
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specifies the precise location of each X value within a distribution. The sign of the z-score (+ or −) signifies whether the score is above the mean (positive) or below the mean (negative). The numerical value of the z-score specifies the distance from the mean by counting the number of standard deviations between X and μ
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