EPID 785R

Lectures

This page contains the course lecture notes, organized by week. Each row corresponds to a week of the course, with a short description of its contents. The notes open via the icon on the right (Week 0 as a web page, later weeks as PDF files).

  • Opens the written lecture notes for that week (PDF).

Notes for later weeks are posted here as the course progresses. We recommend reading the notes before class and revisiting them alongside the labs.

Week 0: Math Foundations
A self-paced refresher on the mathematical tools the course leans on: notation, functions and logarithms, calculus, and working with expectations. Opens as a web page.
Week 1: Randomized Controlled Trials & Emulation
Why trials anchor causal questions: eligibility, time zero, assignment, adherence, and emulating a target trial with observational data.
Week 2: Data Collection
From estimands to data requirements: censoring, truncation, competing events, and pairing estimands with estimators.
Week 3: Outcome-Dependent Sampling
Case-control and case-cohort designs, control-sampling schemes, and what outcome-dependent sampling buys and costs.
Week 4: Regression as a Toolkit
One machine, three uses: descriptive, predictive, and causal questions; least squares and maximum likelihood under the hood; and the three roadmaps.
Week 5: The Anatomy of a Regression Model
The slots of a regression model and the choices they encode: left and right hand sides, target versus nuisance functions, links, distributions, offsets, and the parametric to nonparametric spectrum.
Week 6: Generalized Linear Models
One loop, two functions: every GLM as iteratively reweighted least squares with a variance function and a link plugged in; the exponential family and canonical links; a menu of families fit to simulated and NHEFS data; and why the family is a choice about the variance, not the coefficient.