Cognitive tests are loaded onto myriad touch screen client computing devices. Patients are administered the tests using the touch screen devices, and their performance is captured and transmitted to cloud servers that store the patient information of all the touch screen devices in a database. In addition to cognitive test results, touch screen devices may also transmit patient medical information for storage in the database. Consequently, the database includes a large population of performance and medical data that can be evaluated to gain insights into cognitive disorders and create more effective digital tests for their diagnosis and treatment.