Model and Variable Selection
Free SOA Exam SRM (Statistics for Risk Modeling) lesson in Linear Models. 36 min read, ~5,344 words.
Choose the response distribution first (normal, Poisson, binomial, gamma), then pick the canonical link unless theory or fit says otherwise. t-tests target one coefficient; F-tests and likelihood ratio tests target nested-model comparisons. Use t for a single slope, F or LRT for blocks. AIC = -2 log L + 2k...
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What this lesson covers
- Content
- Example 1
- Example 2
- Example 3
- Example 4
- Example 5
- Example 6
- Common Mistakes
- Key Takeaways
- Exam Shortcuts
Learning objectives
- 2e
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