Race condition
Race conditions arise in software when an application depends on the sequence or timing of processes or threads for it to operate properly. As with electronics, there are critical race conditions that result in invalid execution and bugs. Critical race conditions often happen when the processes or threads depend on some shared state. Operations upon shared states are critical sections that must be mutually exclusive. Failure to obey this rule opens up the possibility of corrupting the shared state.
Race-norming
Race-norming, more formally called within-group score conversion and score adjustment strategy, is the practice of adjusting test scores to account for the race or ethnicity of the test-taker. In the United States, it was first implemented by the United States federal government in 1981 with little publicity, and was subsequently outlawed by the Civil Rights Act of 1991. Prior to being banned by the federal government, race-norming was practiced by 38 U.S. states' employment services. The aim of this practice is to counteract alleged racial bias in aptitude tests administered to job applicants, as well as in neuropsychological tests. University of Delaware professor Linda Gottfredson has been very critical of this practice, as have conservative columnist George Will and law professor Robert J. Delahunty. In the 1980s, the Reagan administration ordered a study into the unadjusted General Aptitude Test Battery (without race-norming); the results, released in 1989, showed that it was not strongly related to job performance.