oscats ☆

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Description:
Computerized adaptive testing system

Type: Formula | Latest Version: 0.6@0 | Tracked Since: Oct 15, 2025

Links: Homepage | formulae.brew.sh

Category: Other

Tags: psychometrics adaptive-testing irt education c-library

Install: brew install oscats

About:
Oscats is a computerized adaptive testing system designed to deliver assessments dynamically based on a test-taker's ability level. It implements Item Response Theory (IRT) to select the most appropriate items in real-time, ensuring efficient and precise measurement. This open-source C library provides a robust framework for building and administering adaptive tests.

Key Features:

Implements Item Response Theory (IRT) models
Dynamic item selection algorithm
Extensible C library architecture
Supports various IRT models (e.g., 2PL, 3PL)

Use Cases:

Developing adaptive educational assessments and exams
Creating efficient psychological or aptitude testing platforms
Researching psychometrics and educational measurement

Alternatives:

R (psych package) – R provides extensive psychometric packages for analysis, but Oscats is specifically designed for real-time delivery of adaptive tests.
OpenRAMPT – OpenRAMPT is a Java-based open-source CAT system, whereas Oscats is implemented in C for potentially lower-level performance.

Version History

Detected	Version	Rev	Change	Commit
Oct 15, 2025 5:03pm		7	VERSION_BUMP	ed2ae56c