Continuous Performance Test

This is a test of ability to sustain attention with a constantly changing memory load. You see upper case letters one at a time on the screen. The letters appear at the rate of about 45 per minute. The task is to respond whenever you see the same latter repeat itself. 

So in the sequence in the right, you would respond immediately on seeing the second F 

This is a reaction time task, so you should always respond as quickly as possible, while avoiding errors. We record the reaction times averaged over the test, and the total number of correct and incorrect responses. 

This test can be run on a tablet computer or a Java-enabled mobile phone (currently only supported on Nokia phones, other versions on request). The test normally lasts about five minutes.

PenScreen Home Test Descriptions