The ITAB measures fluid intelligence with a proven predictive utility (validity) for technical occupations.  The ITAB is privately owned, but has gone through a series of thorough norm and validity studies with the U.S. Navy.  In a recent study it was shown that the ITAB tests have substantial incremental validity over ASVAB Selection Composites in the prediction of success in the Navy Apprentice Technical Training (ATT) program.  The Navy ATT program prepares recruits for a variety of technical vocations, including Electrician and Electrician Mate, Electonics Technician, Communications Technician, Gas Trubine Systems Technician, etc.

Recently, we completed a study with 8th graders in the State of Louisiana, which showed that the ITAB have good predictive utility for school achievements as measured with ACT EXPLORE tests, in particular for math and science. 

Most problems for which domain experts are hired depend on multiple information sources, which are often of a probabilistic nature. This certainly holds for the domain of selection and placement decisions. Decades of assessment research have shown that human experts are incapable of achieving high standards of accuracy in combining probabilistic information.