Now that the dust has begun to settle on CAT 2016, we can may be take a step back — beyond score calculators, the expected percentiles and incorrect questions — and take a look at it in terms of the evolution of the test. The test itself, if I am not wrong, for only the third time in its history did not change at all in terms of structure. On the face of it CAT 2016 and 2015 look like twins but like with twins there are significant differences beneath the surface.