The Armed Forces Vocational Aptitude Battery (ASVAB) is a series of vocational tests that is designed to place candidates for military service in the most suitable career fields and, as such, would be counterproductive to cheat on. According to About.com, the ASVAB is used to assess which occupations an applicant shows an aptitude toward, making an artificially inflated score likely to place a candidate in a difficult, unsuitable profession.
About.com reports that over 90 percent of new military recruits take the ASVAB during their initial examinations at a military entrance processing station (MEPS). When the test is taken at the MEPS, it almost always takes the form of an adaptive computer-aided test. This format has the potential to make cheating very difficult, if not impossible, as the order in which it presents questions varies from one testing experience to the next. On an adaptive test, correct answers are rewarded with more difficult questions in an effort to accurately gauge the test-taker's authentic skill level in the subject. Incorrect answers are followed by easier questions. Because the order in which the questions are presented is not fixed, and the pool of questions is potentially much larger than the number that are actually presented in any one test, no individual is likely to succeed in devising a cheat sheet that anticipates the test's questions.