By Gerald J. Bayens
Advent to ResearchNature of felony Justice ResearchWhat Is Research?Research ProcessesPure as opposed to utilized ResearchScientific InquiryAssessing Goodness of TheoryConstructing clinical TheoriesResearch HypothesesResearch DesignWhat Is examine Design?Types of analysis DesignsResearch PurposesChoice of study DesignLevels of MeasurementValidity and ReliabilityStatistics in ResearchRole of StatisticsBasic rules and ConventionsDescriptive StatisticsData GroupingInferential StatisticsMeasures, Validity, and ReliabilityMeasurementVariablesIndexes and ScalesValidity and ReliabilityAnal. Read more...
summary: creation to ResearchNature of legal Justice ResearchWhat Is Research?Research ProcessesPure as opposed to utilized ResearchScientific InquiryAssessing Goodness of TheoryConstructing clinical TheoriesResearch HypothesesResearch DesignWhat Is study Design?Types of analysis DesignsResearch PurposesChoice of study DesignLevels of MeasurementValidity and ReliabilityStatistics in ResearchRole of StatisticsBasic ideas and ConventionsDescriptive StatisticsData GroupingInferential StatisticsMeasures, Validity, and ReliabilityMeasurementVariablesIndexes and ScalesValidity and ReliabilityAnal
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Extra resources for Criminal Justice Research Methods : Theory and Practice, Second Edition
Doing this allows him or her to make distinctions among several values. Numerical attachments serve as a convenient way of identifying data when it is collected and analyzed, but they do not convey statistical significance in regard to relationships. For example, the numbers on soccer uniforms are measures at the nominal level. Tara, a player with the uniform 12 is not necessarily better skilled at soccer than Jessica who wears a lower 10. Nor is Tara twice as capable a player as Samantha, a teammate who wears uniform 6.
3. Reliability constitutes the consistency and stability of a measurement. If a study were duplicated, would the instrument yield the same answer to the same question on second testing? If so, the results are considered stable. Consistency indicates whether a measurement may be applied universally. Both validity and reliability are important characteristics of measurement. , you can have reliability without validity, but in order to achieve validity you must have reliability). A comprehensive discussion of validity and reliability is provided in Chapter 4.
Why do departments that conduct undercover investigations have guidelines? 4 Descriptive Research As its name implies, descriptive research provides a description of some phenomenon and is the most commonly utilized research in the field of criminal justice. While its purpose is similar to that of exploratory research (fact finding), the nature of the research differs considerably. In descriptive research, the goal is to capture the essence of some event by gathering precise measurements from a set of carefully selected cases and then generalize the findings to a larger population.