In the table, why do some variables have means and standard deviations in the se
ID: 3360052 • Letter: I
Question
In the table, why do some variables have means and standard deviations in the second column while other variables have percents? In other words, why couldn’t the authors provide means and standard deviations for all of the study variables?
Article name:Donner, C. M., &Jennings, W. G. (2014). Low Self-Control and Police Deviance:Applying Gottfredson and Hirschi’s General Theory to Officer Misconduct.PoliceQuarterly, 17(3), 203-225
able . Sample Characteristics(N- 1,935) Variable Independent variable M (SD)/% Min ax Low self-control (additive index) 2.68 (1.45) 0.00 8.00 Control variables Age (in years) Sex (0-Female, l-Male) Race (0 non-White;-White) Education (in years of schooling) Exposure (in months of service) 26.71 (6.19) 6T00% 44.00% 13.24 (1.77) 35.89 (12.69) 8.00 0.00 0.00 7.00 3.00 55.00 1.00 .00 22.00 58.00 Dependent variables Physical complaint (0 No; I- Yes) Verbal complaint (0 No - Yes) Lack of service complaint (0 No;Yes) IA investigation (0-No; I- Yes) General misconduct (0 No; l-Yes) Departmental discipline (0-No; I- Yes) 16.52% 0975% 08.31 % 15.34% 08.47% 30.43% 0.00 0.00 0.00 0.00 0.00 0.00 1.00 .00 1.00 1.00 1.00 1.00 Note. IA Internal Affairs.Explanation / Answer
Result:
In the table, why do some variables have means and standard deviations in the second column while other variables have percents? In other words, why couldn’t the authors provide means and standard deviations for all of the study variables?
Variables measured in quantitative ( or continuous) form have mean and standard deviations. Variable in categorical or qualitative form like sex are presented in frequency and percentages. The variables measured in the form of No and Yes are categorical variables.
No meaning or not appropriate in calculating mean and sd for such categorical variables.