Web-based Testing

Standardize on one infrastructure

Our cloud infrastructure has been designed from ground up for web-based deployment of professional cognitive tests and maximum flexibility of setting up test batteries and sessions schedules to support a large variety of research scenarios. You may collect data in your own lab, reach your subjects via email at home, or post links in the web for voluntary participation with the same cloud infrastructure.

Ready-to-use test paradigms

The ERTSLab Cognition Library offers a large number of cognitive test paradigms which can used to set up educational exercises or be assembled into professional test batteries for clinical trials. The tests are highly configurable to give students control about final design or tailor the tests to individual study objectives. All tests are browser-based and can run on any device that supports HTML5/Javascript web applications.

Run your own test applications on our platform

Many academic departments implement their new experimental paradigms on their own using open source toolkits like jspsych.org to have maximum flexibility on the outcome.
Our platform provides a simple interface to register such custom application as extensions to our Cognition Library. Once registered, you can schedule your own test and at the same time take advantage of our secure cloud infrastructure to manage participants, schedule sessions, collect data in the cloud, and download results complemented with our participant and session coding.

No installation required

Web-based solutions run in the web browser and do not require any installation of software. To setup new experiments you login to your ERTSLab web account and design the experiment and invite participants. Each test session has its own URL.
You can execute the session by simply launching this URL in the browser from any device that comes with a modern internet browser. There is no limitation in terms of number of computers, neither for design time nor for data collection or quality control. It is all web-based!

Benefit from new features immediately

Unlike software shipped and installed in the conventional way, you benefit from any improvement automatically the next time you login into your account. Our Cognition Library and Experiment Administration Console are continuously improved to meet the needs of professional psychologists.

Collect data on multiple devices

ERTSLab takes advantage of modern browser technology which is industry standard. Experiments are written in HTML5/JavaScript and can run theoretically on any device with modern web browsers (e.g. Chrome, Internet Explorer, Firefox, Safari). While all ERTSLab tests conform to the HTML5 standard, some mobile browsers may not perform at the same level as desktop browsers. Devices without keyboard are limited to touch gestures which may not be sufficient for some tests that requires multiple response keys.


Timing in modern web-browsers is not different from any standard application running on the same operating system. With web-based gaming becoming more popular, modern web browsers provide event loops in the range of 4ms which is sufficiently accurate for most purposes of cognitive testing. Our test application run stand-alone on the client once their are loaded at the beginning of the experiment and do not require any server events to execute the trials. In case the test requires bitmaps or sound samples, the cashing is managed by the browser.

All data in one place

All data can be accessed from within our Web Console as your data collection progresses. Trial-wise raw data can be downloaded in CSV file format allowing you to do any analysis you want. There are also standard online reports available for providing quick graphical overview on key treatment effects. Computed test scores can be download to simplify the inspection of subject’s performance as well as further statistical processing.

Secure and Auditable

We apply reasonable security practices to protect against unauthorized access, use, modification, destruction or disclosure of your personal information. You can use the platform without disclosing any personal data. We are using a strict role-based user management which you can use to give users only limited access to data and functionality. The platform is generating an audit trail logging significant events to provide full transparency on who has logged in and created, modified, or accessed data.