Relationships · Ordinal outcomes
Ordered-Category and Cumulative-Probability Contrasts
Describe the magnitude of an ordinal difference without inventing equal spacing.
Page 1 of 7 · Big Picture
The big picture: Ordered-Category and Cumulative-Probability Contrasts
How large is a group difference when the outcome is ordinal?
Why a policy analyst should care
Ordinal outcomes preserve rank but not equal spacing, so category and cumulative-probability contrasts communicate policy-relevant magnitude without inventing a mean difference.
Follow the idea from the opening question to a practical decision. These are the conceptual moves this module will develop:
1 Question How large is an ordinal group difference?
2 Explore Move probability across ordered categories
3 Formalize Define category and cumulative contrasts
4 Transfer Choose contrasts before seeing results
Use the left and right arrow keys to move between pages.