Psychometric Software

The Psychometric Research Centre has developed a number of software tools. Many of these applications are also used by organisations outside Cito, worldwide.

• OPLM
  OPLM is an MS-DOS application for analyzing item responses within the framework of the One Parameter Logistic Model (OPLM).
• DOT
  Design of Optimal Test (DOT) is a Windows (Windows 95 or higher) program to select items (from an item bank) into a test (or more tests) that comply the best possible way to the required test design criteria.
• TiaPlus
  TiaPlus is a Windows (Windows 95 or higher) program for test and item analysis within the framework of Classical Test Theory (CTT).
• WinLLTM
  WinLLTM is a Windows (Windows 95 or higher) program for analyzing dichotomously scored item responses using the Linear Logistic Test Model (LLTM).

Availability

Although this software is not for sale, on request Cito will make this software available for scientific, non-commercial use.