OptimalCAT

OptimalCAT is an easy-to-use production-grade Computer Adaptive Testing (CAT) engine. It's both for psychometricians to run simulations and for IT engineers to deploy to production.

It builds upon the shadow-test approach. It leverages state-of-the-art Mathematical Programming solvers (FICO Xpress or Gurobi) to deliver optimal tests to each student. It guarantees that test blueprints and constraints are always met, and measurement accuracy is maximized.

The engine is built as a microservice (REST API interface) and can be easily integrated with test delivery systems.