The first step that one will take after deciding to pursue a career in the military is taking the Armed Service Vocational Aptitude Battery test. This is more commonly referred to as the ASVAB. The ASVAB not only determines whether or not a candidate is qualified to serve in the armed forces but also shows which specific job they have the most aptitude for.
The scores from the other tests are used to determine what type of specialty you might be best suited for.  These "composite" scores (also known as line scores, MOS scores, or aptitude area scores) are calculated by adding together combinations of the different sub test standard scores. These composite scores are then used to determine which different military jobs (aka Military Occupational Specialties or MOS) may be the best fit for you.  Each branch of the military will have their own approach to these composite scores.
The ASVAB test is administered to potential military recruits to help determine which branch of service and which military jobs they will be best suited for. It is not a test of intelligence and is administered only in English. The test consists of nine subjects: General Science, Arithmetic Reasoning, Word Knowledge, Paragraph Comprehension, Mathematics Knowledge, Electronics Information, Auto and Shop Information, Mechanical Comprehension, and Assembling Objects.
Use this book as a guide especially for the word knowledge portion of the asvab, it has a great primer on understanding words that may be unknown to you without having to use a dictionary. The material in the math section of this book however didn't cover what was on the actual exam at Ft. Meade in the testing center. The actual test had many more basic arithmetic reasoning questions rather than algebraic questions involving formulas, coordinates, or inequalities. I think you'll purchase this book and realize that you know more than you think you do. Got a 92 btw on the ASVAB AFQT. Overall this book really helped with word knowledge.
The test is part of the larger ASVAB Career Exploration Program. The Program uses the test to help students identify both their interests as well as their strengths in three skills areas (verbal, math, and science and technical skills). Based on a student's skill levels, information is provided about more than 400 occupations in order to enable students and parents to judge their potential success in areas that interest them the most. Schools that may be facing budget cuts or finding themselves with limited resources devoted to career counseling are encouraged to find out whether using the ASVAB Program would be useful, as the testing and career development services are free of charge.
Por ejemplo, si recibe una puntuación percentil de 72, se puede decir que su puntaje es tan bien o mejor que 72 de 100 del grupo de la norma que tomaron el examen. (Y, por cierto, esta estadística a partir de 1997 no es un error. El ASVAB fue la última “re-normado” en 2004, y el grupo de muestra utilizada para la norma era esas personas que tomaron el examen en 1997.)
Robert De Niro nunca han ganado su primer premio de la Academia, si él había conseguido el papel que quería como Michael Corleone en El Padrino. En 1975, recibió su primera nominación y ganar por su papel como joven Vito Corleone en El Padrino: Parte II. Para el año 2013, que había anotó seis nominaciones más (incluyendo una nueva victoria en 1981).

The scores from the Word Knowledge, Arithmetic Reasoning, Mathematics Knowledge, and Paragraph Comprehension are combined together and known as the Armed Forces Qualification Test (AFQT). Your AFQT scores represent a percentile between 1 and 99 and measure your ranking compared to scores from other 18 to 23 year olds. If you score a 70 on your AFQT, this implies that you scored better than 70% of test takers. Your scores on the other six ASVAB tests will help identify which jobs may be appropriate for you in the military.

El ASVAB no tiene un puntaje general. Cuando escuchas a alguien decir: "Obtuve un 80 en mi ASVAB", esa persona está hablando de la puntuación de la Prueba de Calificación de las Fuerzas Armadas (AFQT), no de una puntuación general de ASVAB. El puntaje de AFQT determina si usted incluso califica para alistarse en el ejército, y solo cuatro de las subpruebas se utilizan para calcularlo:

El examen ASVAB (Examen de Aptitud Vocacional para las Fuerzas Armadas, por sus siglas en inglés) es una prueba de varias aptitudes que se toma en más de 14,000 escuelas y MEPS (Centro de Procesamiento de Entrada a las Fuerzas Armadas, por sus siglas en inglés) de todo el país, y es desarrollado y actualizado por el Departamento de Defensa. En la actualidad, para prepararse para el enlistamiento en la Air National Guard, los estudiantes pueden tomar pruebas de práctica del ASVAB, que se pueden encontrar en Internet con facilidad. Estas pruebas les darán una idea de la calificación que obtendrán e identificarán las áreas en las que puede ser necesario mejorar. Es probable que la biblioteca pública también tenga libros y materiales que puedan ser de ayuda para estudiar para el ASVAB. Una vez que el estudiante esté listo para realizar el ASVAB, debe comunicarse con el agente de reclutamiento de la Air National Guard más cercano. El agente de reclutamiento de la Air National Guard concertará una cita para el estudiante en el MEPS más cercano, a fin de determinar su elegibilidad para enlistarse en la Air National Guard.
Quienes no viven cerca de un MEPS pueden realizar el examen (por lo general con lápiz y papel) en una ubicación satelital llamada centro MET (Prueba de Entrada a las Fuerzas Armadas, por sus siglas en inglés). Todos los reclutas militares deben realizar el ASVAB, incluso si ya realizaron el ASVAB CEP en la escuela secundaria. El ASVAB que se realiza en el MEPS añade una sección llamada Ensamblaje de objetos, con un total de nueve asignaturas.
Sharpen your ASVAB test-taking skills with this updated and expanded premier guide with CD ASVAB For Dummies, Premier Edition includes in-depth reviews of all nine test subjects with complete explanations for every question, proficiency exercises, and tips to help you pinpoint your weaknesses and hone your test-taking skills. This Premier Edition of our bestselling ASVAB test guide includes six full-length practice tests (two more than our standard edition) PLUS interactive vocabulary builder flashcards on the CD. This companion CD (exclusive to the Premier Edition) * Offers a database of military jobs and their required ASVAB score * Displays the jobs you would be eligible for based on your ASVAB practice test scores * Allows you to mark sample test questions for easy referral once the sample test is complete *"Real life" ASVAB CAT test-taking experience that simulates the actual test you'll take on test day Like our standard guide, ASVAB For Dummies, Premier Edition * Includes a new sample Armed Forces Qualifying Test (AFQT) * Presents a thorough review of foundational concepts for every section including, building word knowledge, paragraph comprehension, math word problems, mechanical comprehension, object assembly, and more ASVAB For Dummies, Premier Edition is the ultimate guide for scoring your best and finding your place in the military.
The vast majority of people who take the CAT-ASVAB test finish it as the time constraints are not very aggressive. However, if a respondent isn’t able to finish in time, the remaining unanswered questions are scored as if the respondent had answered them randomly. This is obviously not an ideal way to finish up the test and most often results in even poorer scores.
The paper-and-pencil version of the test administered at a Mobile Examination Test (MET) site usually takes 3–4 hours. The time needed to take the CAT-ASVAB test can vary. The test is adaptive. If the candidates answer a question correctly, they are given one of increasing difficulty. If the candidates miss a question, they are subsequently given an easier item. This pattern continues until the test is finished. Because of its adaptive nature, the CAT-ASVAB test generally takes about half the time of the paper-and-pencil version.

Your success on ASVAB test day depends not only on how many hours you put into preparing, but also on whether you prepared the right way. It’s good to check along the way to see whether your studying is paying off. One of the most effective ways to do this is by taking ASVAB practice tests to evaluate your progress. Practice tests are useful because they show exactly where you need to improve. Every time you take a ASVAB practice test, pay special attention to these three groups of questions:
After a candidate has completed the ASVAB they must wait one calendar month before retaking the exam. An additional calendar month must pass before retesting a second time. Six calendar months must pass before retaking the test a third time. The scores received from the ASVAB may be used for enlistment for up to two years from the initial test date. 
There are essentially two options when it comes to preparing for this test. First, a person can attempt to reassess all of the information that they learned over a decade by spending hours compiling information. Secondly, a person can find a specially formatted ASVAB practice test that covers all areas of both the written test and computerized test. Clearly, the best choice is the ASVAB practice test. The question becomes “Where does one find an accurate ASVAB practice test?”