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Statistics for Behavioral Sciences Lab PSY2008 S02

Statistics for Behavioral Sciences Lab PSY2008 S02 - RCMAS...

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Assignment 2: Final Project 1. Use the appropriate descriptive statistics from W2: Assignment 2 . Assuming that the sample statistics you computed are exactly equivalent to the corresponding population parameters, identify the following: a. What score on the pretreatment Revised Children's Manifest Anxiety Scale (RCMAS) would correspond to an extremely high score? I will subjectively choose a z-score of 4 to represent extreme values. 20.22 + 4(3.74) = 35 b. What score on the pretreatment RCMAS would correspond to an extremely low score? 20.22 - 4(3.74) = 5 2. Use SPSS to compute z-scores for Pretreatment RCMAS. Complete the table, indicating the appropriate z-scores corresponding to each of the participants whose score is given. Subject ID Pretreatment RCMAS Z-Score 5 20 10 28 15 24 20 28 25 17 3. Write a brief paragraph interpreting these z-scores. A pretreatment RCMAS of 20 is 0.059 standard deviations below the mean. A pretreatment

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Unformatted text preview: RCMAS of 28 is 2.080 standard deviations above the mean. A pretreatment RCMAS of 24 is 1.011 standard deviations above the mean. A pretreatment RCMAS of 17 is 0.861 standard deviations below the mean. This is from W2 Assignment 2 Statistics Subjects Age in Years Subjects RCMAS Pre-treatment S u b j e c t s R C M A S P o s t-T r e a t m e n t N Valid 99 99 99 Missing Mean 11.06 20.22 1 1 . 7 6 Median 11.00 19.00 1 2 . Subjects RCMAS Pre-treatment Frequency Percent Valid Percent Cu mul ativ e Per cen t Valid 14 4 4.0 4.0 4.0 15 6 6.1 6.1 10.1 16 7 7.1 7.1 17.2 17 6 6.1 6.1 23.2 18 14 14.1 14.1 37.4 19 14 14.1 14.1 51.5 20 7 7.1 7.1 58.6 21 3 3.0 3.0 61.6 22 12 12.1 12.1 73.7 23 4 4.0 4.0 77.8 24 7 7.1 7.1 84.8 25 4 4.0 4.0 88.9 26 4 4.0 4.0 92.9 27 3 3.0 3.0 96.0 28 4 4.0 4.0 100.0 Total 99 100.0 100.0...
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