None of us really understands what's going on with all these numbers.
David Allen Stockman, on the U.S. budget
The tests below constitute a series designed to assess your ability to discover properties that strings of digits can have.
Each test has 10 items. In each item, you will be given five strings of four digits, and your task is to identify the one string of digits that does not have property that the other strings of digits do have.
These tests are an assessment of the ability to perceive similarities in purely symbolic material of a numerical kind, requiring perception and insight.
The item type found in these tests resembles several item types that are somewhat common on professional intelligence tests, all requiring the ability to uncover patterns in the symbolic domain.