the Attention Concentration Test

The Attention Concentration Test (ACT) primarily measures attention or more specifically the concentration of attention, which is the most important factor of intelligence. Therefore, the test can also be considered as a genuine intelligence test.

With respect to design as well as with respect to evaluation the test is based on inhibition theory. The test is, therefore, theoretically based, which is not the case with all other intelligence tests, which have been developed up to now.

It is possible for the testee to become acquainted with the test before actually taking the test. In this respect the test is also unique among all present day intelligence tests.

The test is useful as an intelligence-screening test par excellence.