Structured Courses

Deeper, gated courses with assessments, capstones, templates, and practice data. Try the free sample, then create a free account to enroll.

Choose a role-based curriculum

Each path gives the courses a practical sequence and ends with a portfolio artifact you can adapt to real product, research, or policy work.

Causal Analyst

12-15 hours

Data scientists and researchers making causal claims from messy product or operations data.

Artifact
Identification memo with diagnostics, sensitivity plan, and interpretation limits.
Use case
Judge whether observational evidence is decision-grade or needs a new experiment.
  1. 1Causal Inference
  2. 2Experimental Design
  3. 3Bayesian Statistics in Practice

Adaptive AI Systems

14-17 hours

ML engineers and agent-system builders designing policies that learn safely.

Artifact
Offline policy improvement plan with reward, guardrails, OPE, and rollout criteria.
Use case
Improve a logged decision policy without deploying an unsupported optimizer.
  1. 1Reinforcement Learning
  2. 2Causal Inference
  3. 3A/B Testing at Scale

Executive Decision Infrastructure

8-10 hours

Leaders building an organization-wide experimentation and decision-review capability.

Artifact
Operating model for risk-tiered experiments, metric contracts, and decision memory.
Use case
Scale learning velocity while keeping evidence, ethics, and business guardrails intact.
  1. 1A/B Testing at Scale
  2. 2Experimental Design
  3. 3Causal Inference

Applied Experiment Engineering

8-10 hours

Backend and ML engineers integrating adaptive experiments into applications or pipelines.

Artifact
Working experiment integration with assignment, observation, stopping rule, and decision framework.
Use case
Ship a production-grade experiment with bandit or A/B allocation and Bayesian analysis.
  1. 1Reinforce OS
  2. 2Experimental Design
  3. 3Bayesian Statistics in Practice
Intermediate9 lessons

Experimental Design

Design rigorous experiments — from power analysis to pre-registration

  • Randomization
  • Power analysis
  • Factorial designs
  • Adaptive experiments
  • Design review
Advanced11 lessons

Causal Inference

Move beyond correlation — master DAGs, IV, diff-in-diff, and causal forests

  • DAGs & do-calculus
  • Matching & weighting
  • Instrumental variables
  • Sensitivity
  • Identification memos
Advanced11 lessons

Reinforcement Learning

From MDPs to policy gradients, bandits, and RLHF

  • MDPs
  • Dynamic programming
  • Q-learning
  • Policy gradients
  • Offline RL
  • RLHF
Intermediate9 lessons

Bayesian Statistics in Practice

Build probabilistic models with Stan and PyMC — from priors to MCMC

  • Prior specification
  • MCMC
  • Hierarchical models
  • Model criticism
  • Probabilistic programming
Intermediate7 lessons

A/B Testing at Scale

Sequential testing, multiple comparisons, and trustworthy experiment pipelines

  • MDE & power
  • Sequential testing
  • Multiple comparisons
  • Experiment infrastructure
  • Review boards
Intermediate7 lessons

Reinforce OS

Build and run adaptive experiments with the Reinforce OS experiment API

  • Assign & observe API
  • Variable library
  • Thompson sampling
  • Bayesian analysis
  • Early stopping

Decision-Making Under Uncertainty

Our open textbook — 10 interactive chapters covering experiments, causality, Bayesian thinking, bandits, and RL. No account required.

Start reading →