Skip to Content
Interactive Textbook on Clinical Symptom Research Logo


Home Button

Statistical Models for Prognostication
Author Bio
Introduction
Predictions: Statistical Models
Insight: Statistical Models
Ingredients: Statistical Models
Currently selected section: Theoretical Aspects
Central Concepts
Regression Models
Problems: Regression
Practical Advice
Example 1
Example 2
Chapter 8: Statistical Models for Prognostication: Theoretical Aspects of Predictive Modeling
        
Additivity Assumption

The additivity assumption means that predictors are related to the outcome in an additive fashion in the regression formula of a generalized linear model.

QUESTION 5.2

Additivity can be tested by:

Selection AAdding transformations of a predictor variable.
Selection BAdding interaction terms between predictors.

Previous Page