CRJ 302 Lecture 4: CRJ 302 Notes Chapter 4

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Chapter 4: research design: description, correlation & causation. Units of analysis; levels of measurement; alternative explanations. Also, narrative descriptions as results of systematic observations of groups, places, and events: to reveal relationships between variables: examine the degree to which there is co-variation between any two, or more, factors or variables. Positive vs negative correlations: explanation: to identify the nature of cause and effect if any, between two variable. Causation; causation of x on y assumes that x in independent variable, y is dependent variable. It is a study of how the policy or program effects or causes- changes in the desired outcomes. Variance: the amount the measurement that varies within a certain range. We want to understand the relationship between decisions that are made, and understand why some. 3rd factors are not relevant sometimes, we can find that 3rd factors do not really make a difference at all. A variable can change or vary, while a constant doesn"t.

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