CRJ 511 App Assign 2

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School

Arizona State University *

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Course

511

Subject

Statistics

Date

Feb 20, 2024

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pdf

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2

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Did the authors present any measures of dispersion in a table? What measures of dispersion were used, and what information did it tell us? Discuss why this measure of dispersion was used instead of the other options. Based on the article and only Table 1, measures of dispersion were present. Regarding the independent variable, a measure of dispersion in the table is standard deviation, being 1.45, which is the square root of squared deviation regarding the mean of 2.68, the average lifetime history of two of the nine behavioral indicators of low self-control. standard of deviation and somewhat the range are present in Table 1. The other measures of dispersion that were not used instead of the other options were variance, interquartile range (IQR), mean deviation, and the coefficient of variation. Standard deviation and range were used instead of the other options because the standard deviation is mathematically robust as opposed to the others, can help identify potential outliers. What is the INDEPENDENT variable? What is the mean of this variable? What is the standard deviation of this variable? Did the authors use appropriate measures of dispersion for this variable? What other measures of dispersion could the authors have also used and why? If the authors have used the mean and standard deviation, perform some calculations to determine the range of scores on the independent variable in which 95.44% of the scores fall. Hint: remember that about 95% of the scores fall within 2 standard deviations above and below the mean. The independent is low self-control. The mean of this variable is 2.68. The standard deviation of this variable is 1.45 What is the dependent variable? What is the mean of this variable? What is the standard deviation of this variable? Did the authors use appropriate measures of dispersion for this variable? What other measures of dispersion could the authors have also used and why? If the authors have used the mean and standard deviation, perform some calculations to determine the range of scores on the dependent variable in which 95.44% of the scores fall. Hint: remember that about 95% of the scores fall within 2 standard deviations above and below the mean. As instructed by the professor, use control variables, one of the control variables is EDUCATION. The mean of this variable is 13.24 years of schooling, and the standard deviation is 1.77. In the table, did the authors provide means and standard deviations for all of the study variables? Is it appropriate to do so? Why not?
In this table, the authors did not provide the means and standard deviations for all of the study variables, such as those of control variables, sex and race, and the dependent variables of physical complaints, verbal complaints, lack of service complaints, IA investigation, general misconduct, and departmental discipline. It was not appropriate to do so for all variables because mean and standard deviation require numerical values and not nominal-level variables
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