Adding a computerised test of attention and activity to standard care can reduce the time needed to make a diagnostic decision on attention deficit hyperactivity disorder (ADHD) a study says. The findings published in the Journal of Child Psychology and Psychiatry also showed that such a test can increase the likelihood of excluding ADHD when it is not present and improve clinicians' confidence in their decision-making without compromising diagnostic accuracy. The trial is ground-breaking because it is the first independent randomised-controlled study to demonstrate that an objective assessment technology (QbTest) can increase the speed and efficiency of diagnostic decision-making in