Development and use of a computerized test, MATH-CPT, to assess attention

The present research describes the development of a new measure of attention, the Mathematics Continuous Performance Test (MATH-CPT), which uses a sequence of simple mathematical questions projected onto a computer screen as visual stimuli. A new approach to testing was developed: it has more complicated stimuli and has an open reaction time allowing participants to react according to individual pace. The development of reliability and validity of the MATH-CPT is described. Discriminant function analysis of 240 normal control participants compared with 63 individuals with ADHD showed correct classification of 91.6% of participants in both groups. The MATH-CPT diagnosed a sample of participants with ADHD better than another CPT-type test, the Test of Variables of Attention. This is an initial step in developing a new measure of attention and to assist with the diagnosis of adolescents and young adults with ADHD.