Transcription of Ordinal Independent Vars - University of Notre Dame
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Ordinal Independent Vars - University of Notre Dame
Ordinal Independent Variables Page 1 Ordinal Independent Variables Richard Williams, University of Notre Dame, ~rwilliam/ Last revised March 5, 2021 References: Williams, R. A. (2020). Ordinal Independent Variables. In P. Atkinson, S. Delamont, A. Cernat, Sakshaug, & Williams (Eds.), SAGE Research Methods Foundations. Paper 248 2009, Learning When to Be Discrete: Continuous vs. Categorical Predictors, David J. Pasta, ICON Clinical Research, San Francisco, CA, . Long & Freese, 2006, Regression Models for Categorical Dependent Variables Using Stata, Second Edition (Not the third!) Many of the ideas presented here were also discussed in We often want to use Ordinal variables as Independent /explanatory variables in our models. Rightly or wrongly, it is very common to treat such variables as continuous. Or, more precisely, as having interval-level measurement with linear effects. When the items uses a Likert scale ( Strongly Disagree, Disagree, Neutral, Agree, Strongly Agree) this may be a reasonable practice.
Mar 05, 2021 · Ordinal Independent Variables Page 2 Long and Freese (in the 2006 edition of their book) agree that ordinal variables are often treated as continuous.
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