Aptitude vs. Intelligence

Combined aptitude and knowledge tests[edit]

Tests that assess learned skills or knowledge are frequently called achievement tests. However, certain tests can assess both types of constructs. An example that leans both ways is the Armed Services Vocational Aptitude Battery (ASVAB), which is given to recruits entering the armed forces of the United States. Another is theSAT, which is designed as a test of aptitude for college in the United States, but has achievement elements. For example, it tests mathematical reasoning, which depends both on innate mathematical ability and education received in mathematics.
Aptitude tests can typically be grouped according to the type of cognitive ability they measure:

1. 
   Fluid intelligence: the ability to think and reason abstractly, effectively solve problems and think strategically. It’s more commonly known as ‘street smarts’ or the ability to ‘quickly think on your feet’. An example of what employers can learn from your fluid intelligence is your suitability for the role for which you are applying
   
2. 
   Crystallised intelligence: the ability to learn from past experiences and to apply this learning to work-related situations. Work situations that require crystallised intelligence include producing and analysing written reports, comprehending work instructions, using numbers as a tool to make effective decisions, etc.^[8][9][10]
   

Better understanding of the varied factors that account for successful second language acquisition is a goal that is of obvious interest to anyone within the field of language study. Before the influence of these factors can be adequately understood, of course, they must be defined and utilized in an accurate and consistent way. This paper endeavors to explore and clarify the ambiguity surrounding usage of the terms intelligence and aptitude in second language acquisition in effort to understand the more central issue of how the qualities designated by these terms relate to second language acquisition. This should enable a clearer picture to emerge about the relative importance of intelligence and aptitude among the constellation of factors associated with second language acquisition.
How do intelligence tests differ from aptitude tests?
People often wonder how smart they are, and this curiosity dates back "nearly 4,000 years when China used written tests to rate applicants for civil service," according to AllPsych Online. Today, two common ways to judge ability are intelligence and aptitude testing. Though linked, these two tests have different purposes and reasons for implementation.