PSY 207 Study Guide - Midterm Guide: Standard Deviation, Central Tendency

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13 Mar 2017
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Z-scores give us the relative position of a score in its distribution. The sign tells us where the score is located relative to the mean. The number tells us the distance between the score and the mean in standard deviations. E. g. , if a distribution has a = 50 and a = 10 and you have a z-score of. 5: be able to calculate a z-score when given a raw score and a raw score when given a z- score. To transform scores into z-scores (and vice versa) we need the distribution"s. If all scores of a distribution are converted to z-scores, then the new distribution will have: S = 1 (or = 1 for a population distribution) Shape of distribution is same as original distribution of raw scores: transforming z-scores to a distribution with a predetermined and other than 0 and.

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