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The relationship between intelligence and education is one that scientists have been studying for years. It is correct to say that higher level of education leads to greater level of intelligence and also true the other way around, however, it does not apply for every situation.
A study done in Germany proved how education did affect the intelligence of students and proof of intelligence affecting education was seen in the military, where people with lesser intelligence were observed to have a slower learning speed and benefited less from education. Typically if maternal and paternal IQ is high, it is very likely for the child to have a high IQ as well. A study conducted by Plug and Vijverberg showed that the environment that a child grows up in also affects his or her future academic performance. The children that were raised by their biological parents had a greater similarity in terms of intelligence and academic performance to their families than those raised by foster parents. Another study was conducted by Campbell and Ramey to test the socioeconomic effect on intelligence and it showed promising results for children at high risk of academic failure when there was an early intervention.