Investigators detected a tendency for those who excelled in one of thurstone's seven primary mental abilities to also demonstrate high levels of competence in other abilities. this provided some evidence of

This provided some evidence of General Intelligence. The general intelligence is also known as g factor that refers to the existence of a broad mental ability that persuades presentation on cognitive aptitude dealings. According to Spearmen, first, illustrate the existence of general intelligence in 1904. This g factor was accountable for in general presentation on mental aptitude examination. The spearman renowned that while people certainly could and often did do extremely well in certain areas, people who did well in one area be inclined also to do well in other regions.