Introduction
Welcome to the course
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What you should know
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Introduction to the course
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Using the exercise files
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1. Designing Your Research
Scientific method review
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Using a cross-sectional approach
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Reviewing existing literature for ideas
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Dealing with scientific plausibility
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Selecting a linear regression hypothesis
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Selecting a logistic regression hypothesis
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Installing necessary packages
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2. Preparing for Linear Regression
Plots for checking assumptions in linear regression
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Interpreting diagnostic plots
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Categorization and transformation
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Indexes
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Quartiles
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Ranking
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Regression review
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Preparing to report results
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3. Beginning Linear Regression Modeling
Choices of modeling approaches
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Overview of modeling process
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Linear regression output
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Models 1 and 2
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Model metadata
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4. Final Linear Regression Modeling
Beginning Model 3
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Making a working Model 3
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Finalizing Model 3
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Looking at the final model
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Fishing and interaction
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Other strategies for improving model fit
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Defending the final model
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Presenting the final model
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5. Preparing for Logistic Regression
Analogies to linear regression process
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Parameter estimates in logistic regression
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Odds ratio interpretation
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Basic logistic code
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Forward stepwise regression: First two rounds
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Forward stepwise regression: Round 3
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6. Developing the Logistic Regression Model
Running Model 1
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Adding odds ratios to models
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Model metadata
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Forward stepwise: Round 2
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Forward stepwise: Round 3
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Using AIC to assess model fit
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When to compare nested models
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How to compare nested models
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Models 1 and 2 presentation
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Model 3 presentation
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Interpreting the final model
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Conclusion
Review of metadata
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Review of the process
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Next steps
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Ex_Files_Healthcare_Regression_R.zip
(666 KB)