Essay examples --

In psychology intelligence if often debated, but there are many different views on what intelligence is. Some say you have to have a wide range of abilities. Other opinions are intelligence is strictly based on upon the knowledge of subjects. For example Charles Spearman and Louis Thurstone had different views on the topic. These two men differed in opinion on how IQ and intelligence should be measured. They also had different opinions on what made a person smart. In order to examine this they first had to understand the human brain and how it works. They had to examine the human study habits along with the human test taking habits. Spearman thought that if all mental tests are mutually related then there is some common factor that causes this. Spearman developed a method called factor analysis that shows that these mutual relations between mental ability tests were the direct result of a common factor among them. Spearman used factor analysis to prove that certain groups of mental ability tests can measure a common mental ability. In the 1900’s Charles Spearman came up with the t...