Testing intelligence means testing the inborn knowledge or the assessment of ones native language will come under testing intelligence. On the other hand, testing for knowledge means knowledge about certain topic or information that was taught or delivered to an individual. The latter is appropriate to measure than deciding the careers on the bases of the first.

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The Stanford-Binet test is a examination meant to gauge intelligence through five factors of cognitive ability. These five factors include fluid reasoning, knowledge, quantitative reasoning, visual-spatial processing and working memory. Both verbal and nonverbal responses are measured. Each of the five factors is given a weight and the combined score is often reduced to a ratio known commonly as the intelligence quotient, or IQ.