what kind of Cog test is it? Is it a Folsteins, Montreal Cognitive Assessment, Wexchsler, Minesota Multi-Phasic Personality Inventory (MMPI)? Is the test administer by a pyschologist and what is the score they are looking for? Just trying to get my hands on one so I can practice.
Are they done with round one of the interviews? How many are they looking to hire in this round? With that high of a failure rate they might have to interbiew many more than expected.