PO217 Lecture Notes - Lecture 4: Dependent And Independent Variables, Operationalization, Telomerase Rna Component
Document Summary
Focus on chapter 3,4,5 for quiz short answer question*** Intervening variables: variables that mediate the relationship between the iv and the dv. an intervening variable provides an explanation of why the iv affects the dv. The dv is related to the iv because the iv affects the intervening variable and the intervening variable, in turn, affects the dv. Independent variable ---> intervening variable ---> dependent variable. To identify possible intervening variables, ask yourself why you think the iv would have a causal impact on the dv. Gender --- reliance on welfare state --- favor increase in social spending. Can also involve factors like worldviews, personality, opinions. Inductively: by examining a set of data for patterns - less powerful. Choice depends on whether we are considering exploratory research or explanatory research. Nominal (categorical): religion, ethnicity, language, province of residence. Ordinal (comparative): political interest, strength of party identification, social class. Interval/ratio (continuous): income, age, years of school, temperature.
