ASVAB scoring is computed to a fixed mean and a standard deviation, with 50 as the mean and 10 as the standard deviation. Therefore, a score of 40 means that the examinee scored 1 standard deviation below the mean.
This is helpful for the Armed Forces when comparing examinees' varying test scores. The ASVAB test is used by the Armed Services to determine new recruits' strengths. It stands for the Armed Services Vocational Aptitude Battery. It also determines whether a person has the mental aptitude needed to enlist in the United States Army. The ASVAB is a required test for all who wish to enlist and the scores are valid for two years.
The ASVAB exam tests the candidate in general science, arithmetic reasoning, word knowledge, paragraph comprehension, mathematics knowledge, electronics information, auto and shop information, mechanical comprehension and assembling objects. The scores are also computed into Armed Forces Qualification Test scores for individual areas. There are ten line scores from the AFQT that is a large component of the ASVAB. These ten line scores are AFQT, clerical, combat, electronics, field artillery, general maintenance, general technical, mechanical maintenance, operators and food, surveillance and communications and skilled technical.