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The practical application of z-scores

The practical application of z-scores. Christine Wilder.

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The practical application of z-scores

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  1. The practical application of z-scores

  2. Christine Wilder Chris was referred to a social worker because of serious behavioral problems. The frustration of her lack of academic success was identified as the central problem. She was given special attention to improve her vocabulary. Each day, the new words she learned were recorded: 8,9,6,20,21,22,23,23, 30,31,29,40,63,66,98,101,121,121,123,129,141,151,149,152,152,159,161,176,188. Within the same timeframe, she received the following demerits: 12,11,13,14,12,13,11,12,13,14,10,10,11, 8,7,9,8,9,8,8,7,9,7,6,6,6,7,4,5,4.3,3,3,3,3,3,3,2,4,2,2,2,2,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0. Following is how a graph would appear with the raw data

  3. The relationship between the vocabulary words and demerits is unclear. However, once we convert the data to z-scores, a clear pattern emerges.

  4. The Wilsons are seeing a clinical social work because of marital problems. Three issues were identified: Marital Scale: Scores 0 to 20 Parental Control: Scores 0 to 100% Motivation: Scores 0 to infinity See how z-scores help? What do you see?

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