I'm unable to begin the Card Test. What now?

If you are trying to take this test from a smartphone or a device that does not meet the test’s minimum screen size requirements, the test will not work. If you have access to a desktop, laptop computer, or tablet with a larger screen, we ask that you take the brain test from there.

If not, we encourage you to move on to the questionnaires. While we would like to collect as much data as possible from every participant, we understand this might not happen. We are grateful for any and all data we receive.