Necessities of Statistics in Criminal Justice Data Analysis:
A common goal of statistics is to investigate causality, and in particular to draw a conclusion on the effect of changes in the values of predictors or independent variables on dependent variables or response. There are two major types of causal statistical studies: experimental studies and observational studies. In both types of studies, the effect of differences of an independent variable (or variables) on the behavior of the dependent variable are observed. An experimental study involves taking measurements of the system under study, manipulating the system, and then taking additional measurements using the same procedure to determine if the manipulation has modified the values of the measurements.
The necessities of Statistics in Criminal Justice are as follows
(1) Statistics helps in providing a better understanding and exact description of a phenomenon of nature.
(2) Statistics helps in proper and efficient planning of a statistical inquiry in any field of study in the criminal justice system.
(3) Statistics helps in collecting an appropriate quantitative data in criminal justice research data analysis.
(4) Statistics helps in presenting complex data in a suitable tabular, diagrammatic and graphic form for an easy and clear comprehension of the data.
(5) Statistics helps in understanding the nature and pattern of variability of a phenomenon through quantitative observations.
(6) Statistics helps in drawing valid inference, along with a measure of their reliability about the population parameters from the sample data.
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N.B:
This writing is a concise version of a term paper which I submitted in my MSS in Criminology and Criminal Justice,DU. As for partial requirement of a course on Criminal Justice system in Bangladesh.
