Classical Test Theory Analysis

Automate a psychometrician’s work in seconds

Iteman™ 4 empowers more organizations to implement best practices in Psychometrics – the science of assessment. It uses the concepts of AI and automation to replace much of the work that a psychometrician used to do manually by jockeying spreadsheets or spending a day with copy-and-paste!

Download Iteman for Free

Iteman 4 is available for free via download. Simply fill out the form on the right and you will be sent a link to the email you provide, as well as additional psychometric resources.  This allows you to get going with the program immediately and start improving your assessments by flagging items that do not meet best practices.

The free version of Iteman 4 is limited to 100 items and 100 examinees. This is perfect for teaching or learning classical test theory as well as real-world application to many smaller-scale tests.

You must enter a valid email to receive the download link.

Upgrading Iteman

Iteman 4 is delivered via the download above. To upgrade to a premium license and unlock the full functionality, click the button below or contact

How can Iteman™ 4 help your organization?

Save money

Why pay a consultant $5000 to make this report for you? For every test?

User-Friendly UI

A friendly Windows UI – no command code! Designed to make psychometrics accessible to anyone.

Readable Output

Output is a Word file with embedded tables, graphics, and narratives. No more ASCII!

Increase Reliability

Flag items that do not meet standards and diagnose with detailed option statistics.

What does Iteman™ 4 look like?

Iteman 4 is a downloadable PC software that uses input files in CSV or TXT format, allowing you to manage large data sets of up to hundreds of thousands of examinees.

Using Iteman 4 is straightforward: simply select the input files on your computer, then utilize the friendly interface to specify options for your results.

  • Differential item functioning
  • Mastery (cutscore) analysis
  • Scaled scoring
  • Automated flagging
  • Cheating (collusion) analysis

Get up and running quickly

Installation of Iteman includes a detailed PDF manual. Additionally, we have provided free training videos at our YouTube channel.


What does Iteman™ 4 output look like?

The program produces extensive test-level output regarding the examinee scores, including 7 estimates of reliability, complete analysis of domains (content areas), frequency distributions of scores, subscores, and statistics, and CSEM.

However, the majority of the report is item-by-item results, presented in detailed tables and a quantile plot for each item. Simply paste in item texts, and you have a comprehensive report ready for item reviewers!

A number of large testing companies use Iteman™ 4 to produce reports for clients, charging up to $5,000 each time – you can now produce these reports yourself for a fraction of the cost!

Iteman reports are also available inside the Ada and FastTest platforms.  Click below to learn more.