Iteman has been one of the world's foremost software programs for psychometric analytics since the 1980's. What separates it from other software is that it not only calculates all the statistics that are essential to psychometric work, but that it creates a draft report for you in MS Word, complete with embedded tables, graphics, and narratives.
Iteman is designed to provide detailed item and test analysis reports using classical test theory (CTT). The purpose of these reports is to help testing programs evaluate and improve the quality of test items by examining their psychometric characteristics.
How does Iteman Work?
Iteman takes two input files, analyzes the assessment data, and provides an MS Word report with a detailed psychometric analysis of your test, with statistical indices on option, item, test, and examinee performance. The first input file is the student response data, and the second input file is control data, which is basic item metadata like Item ID and correct answer. That's all you need to run Iteman.
Free vs Paid Subscriptions
The Free subscription works with up to 100 items and examinees. It is a permanent subscription rather than a time-limited demo. You can upgrade at any time with a credit card to remove those restrictions.
Contact email@example.com if you need a Purchase Order, or are otherwise unable to purchase online with a credit card.
Differences of current version to past versions
Iteman versions 1 and 2 (approximately 1982-1995) were DOS programs. Iteman 3 (approximately 1995 - 2010) had a Windows interface, as does the current version, but produced DOS-style ASCII output. It also relied solely on DOS-style ASCII input. Iteman 4 (2010 - 2019) utilized a redesigned Windows interface, produced Word (graphics/tables) and Excel output, handled CSV input, and had a number of other major advantages over Iteman 3.
The current version, which would be Iteman 5, is completely different in that it is cloud-based. This means that it can run on any device and is no longer limited to Windows. This also makes it possible to directly connect Iteman to cloud-based assessment platforms, including the Ada ecosystem.
The new Iteman also differs in that it includes two new columns in the examinee data file. First, an inclusion code allows you to delete examinees from analysis without having to delete them listwise from your data-set. Second, it includes a Group column, which is used for group comparisons and optionally for differential item functioning.