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Lecture 2

Crim 320 week 2.docx

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CRIM 320
Rebecca Carleton

Crim 320 – week 2 Objectives - Identify and explain issues about conceptualization and operationalization - The important infor for your proposal - Define statistical concepts relating to measurement of counts: - Ratios, percentages, proportions and rates, central tendency, and dispersion - Define and give examples of the different levels of measurement. **For the paper, staple checklist, and follow it, literally just everything checked off when it’s getting marked.** Topic : Crime rates in 125 American cities  Lit review : 3 sources, journals, i.e. Quantitative Crim Journal(how other researchers have looked at crime and how it differs between/across cities) do not do an annotated bibliography Theory  Hypothesis Conceptualization (x4)  Operationaization (3 for each concept.) The role of theory - Deductive: top down - “Theory,” we construct hypotheses that we subsequently test with data - Inductive: bottom up - Theory is derived from from empirical generalization based on the observations Measurement - The process of assigning a unit of analysis to n attributed or a variable - Unit of analysis – the person or thing from which data are collected - A variable – a set of logical attributes that are of interest to the researcher - For example, assume we want to study judicial opinions on a given subject Example: Judicial Opinions - Judges = units of analysis - On what relevant attributes might judges differ? - What characteristics of the judges might influence their opinion Conceptualization - Theorectical definitions that direct the sarch for an appropriate measure of concepts and establish a basis for judging the quality of the measure - Moving from the abstract to the concrete - Providing specific definitions - Two examples: Substance abuse - DSM-IV: the repeated use of a substance to the extent that it interfere with adequate social or vocational, or self-care functioning - Advantage - widespread acceptance - Disadvantage - Cannot say whether it is “correct” or not - Relies on shared understanding of definitional terms Poverty - Rarely one conceptualization that everyone agrees upon: - Absolute terms: include every
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