According to Charles Spearman, it is one’s intelligence that produces the positive correlations found between vocabulary, spatial ability, and verbal reasoning test

general intelligence

Explanation:

General intelligence refer to general cognitive ability of human mind to solve logical and reasoning problems, complex data problems and verbal reasoning test. This test is generally required after secondary school to get admission in high school. Its meant to test mental capacity to solve unseen reasoning questions.

well to answer ur question to be completly honest

answer; archaeologists;