http://www.sciencetimes.com/article...res-risen-in-the-us-over-the-last-century.htm
"Over the last centuries, as school enrollment rates increased, so did students' exposure to activities that had a profound influence on brain development and thinking skills. Although today there is the widespread perception that the quality of school education is waning, in reality, the shift from memorization-focused learning to problem solving and abstract thinking skills has increased what he refers to as our liquid intelligence. The latter refers to the flexible thinking and abstract problem solving that scores high on IQ tests."
https://en.wikipedia.org/wiki/Flynn_effect
http://www.wsj.com/articles/SB10000872396390444032404578006612858486012
"This progression signals a growing ability to cope with formal education, not just in algebra but also in the humanities. Consider the exam questions that schools posed to 14-year-olds in 1910 and 1990. The earlier exams were all about socially valuable information: What were the capitals of the 45 states? Later tests were all about relationships: Why is the capital of many states not the largest city? Rural-dominated state legislatures hated big cities and chose Albany over New York, Harrisburg over Philadelphia, and so forth.
Our lives are utterly different from those led by most Americans before 1910. The average American went to school for less than six years and then worked long hours in factories, shops or agriculture. The only artificial images they saw were drawings or photographs. Aside from basic arithmetic, nonverbal symbols were restricted to musical notation (for an elite) and playing cards. Their minds were focused on ownership, the useful, the beneficial and the harmful."
"Over the last centuries, as school enrollment rates increased, so did students' exposure to activities that had a profound influence on brain development and thinking skills. Although today there is the widespread perception that the quality of school education is waning, in reality, the shift from memorization-focused learning to problem solving and abstract thinking skills has increased what he refers to as our liquid intelligence. The latter refers to the flexible thinking and abstract problem solving that scores high on IQ tests."
https://en.wikipedia.org/wiki/Flynn_effect
http://www.wsj.com/articles/SB10000872396390444032404578006612858486012
"This progression signals a growing ability to cope with formal education, not just in algebra but also in the humanities. Consider the exam questions that schools posed to 14-year-olds in 1910 and 1990. The earlier exams were all about socially valuable information: What were the capitals of the 45 states? Later tests were all about relationships: Why is the capital of many states not the largest city? Rural-dominated state legislatures hated big cities and chose Albany over New York, Harrisburg over Philadelphia, and so forth.
Our lives are utterly different from those led by most Americans before 1910. The average American went to school for less than six years and then worked long hours in factories, shops or agriculture. The only artificial images they saw were drawings or photographs. Aside from basic arithmetic, nonverbal symbols were restricted to musical notation (for an elite) and playing cards. Their minds were focused on ownership, the useful, the beneficial and the harmful."