Introduction to ResearchNature of Criminal Justice ResearchWhat Is Research?Research ProcessesPure Versus Applied ResearchScientific InquiryAssessing Goodness of TheoryConstructing Scientific TheoriesResearch HypothesesResearch DesignWhat Is Research Design?Types of Research DesignsResearch PurposesChoice of Research DesignLevels of MeasurementValidity and ReliabilityStatistics in ResearchRole of StatisticsBasicPrinciples and ConventionsDescriptive StatisticsData GroupingInferential StatisticsMeasures, Validity, and ReliabilityMeasurementVariablesIndexes and ScalesValidity and ReliabilityAnal.Abstract: Introduction to ResearchNature of Criminal Justice ResearchWhat Is Research?Research ProcessesPure Versus Applied ResearchScientific InquiryAssessing Goodness of TheoryConstructing Scientific TheoriesResearch HypothesesResearch DesignWhat Is Research Design?Types of Research DesignsResearch PurposesChoice of Research DesignLevels of MeasurementValidity and ReliabilityStatistics in ResearchRole of StatisticsBasic Principles and ConventionsDescriptive StatisticsData GroupingInferential StatisticsMeasures, Validity, and ReliabilityMeasurementVariablesIndexes and ScalesValidity and ReliabilityAnal