IAT Software · Designer and hosted administration
Design a seven-block IAT on Windows. Host it. Retrieve results only you can read.
This is software for Greenwald’s seven-block procedure. You build the test on the desktop — words or images, instruction screens, surveys before and after — and deploy it here. Participants take it in a browser. You get the file back. The people who run the server cannot read it.
I built the designer and the host so a lab does not have to write that stack. I will not contact you except about the address you verify, and only because authors can upload images.
For researchers
Author the test in the designer. Deploy it to this host. Participants open a browser and take it. You retrieve an encrypted file with the password you set at deploy.
Someone with the database — including the person who runs this server — still cannot read that file. If that is the bar your review board cares about, read how the encryption works before you put identifiable answers in a survey.
For a class or a lab
Non-profit use is free and is not held to the one-test / 5,000 cap. That includes a course or a lab running under a school.
Email michael@iatsoftware.net and say you are running a class or a lab. There is no storefront and no invoice. I mark the account and you download the same designer.
For one test
You can run one test on this host at a time, up to 5,000 administrations, at no charge. You get trial latencies, survey answers, and a D-score in the Excel export.
That number is the standard scoring of this procedure. It is not a verdict about a person, and one administration is not a study. If you have not scored an IAT before, read the short explainer first.
What it is
- Windows designer for the standard seven-block IAT.
- Custom layout, word or image keys, instruction screens before any block, surveys before and after.
- Deploy to the hosted server. Participants take the test in a browser.
- Retrieve encrypted results with the deploy password. Export to Excel with Greenwald’s 2003 improved D algorithm.
- Source is on GitHub under mkjanda.
What it is not
It is not Project Implicit. It is not a library of ready-made social-attitude tests. It is not a web app you design inside the browser. It is not a platform for arbitrary reaction-time experiments outside the seven-block format. It is not anonymous-by-default — that depends on what the survey asks. It is not a test that uncovers hidden truths on first click.
Proof
Two screens from the designer. The rest of the tabs are on Docs and Samples.


How results stay private
Results are encrypted on the server so that someone with the database — including the administrator — still cannot read them. You choose a password when you deploy. That password is not stored on the host. If you lose it, the data is gone. That is the mechanism, not a support policy. Read how it works.
Download
One test at a time, 5,000 administrations, free. Non-profit and class use: email first.