


Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Community
Ask the community for help and clear up your study doubts
Discover the best universities in your country according to Docsity users
Free resources
Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors
first and second semester psychology study materials
Typology: Study notes
1 / 4
This page cannot be seen from the preview
Don't miss anything!
The common meaning of intelligence is the capacity to acquire and apply knowledge. It is the individuals’ ability to understand complex ideas, to learn from experience, to adapt effectively in the environment and to overcome obstacles by various thoughts. According to Robert Feldman, “Intelligence is the capacity to understand the world, think rationally, and use resources effectively when faced with challenges.” So, intelligence is the ability to think , to learn from experience, to solve problems and to adapt new situation. Major Approaches of Intelligence
above 140 that they were physically, academically and socially capable than non- gifted. However, if such persons do not get special attention , they become bore, frustration and even suicide. Role of Heredity and Environment on Intelligence. According to Plomin, human intelligence is the result of complex interplay between genetic factors and wide range of environmental condition. The influence or role of heredity and environment on intelligence is presented under: Heredity and Intelligence Heredity refers to the transformation of qualities and characteristics from ancestors to descendants. Researchers conducted to understand the role of heredity on intelligence. They assumed that , if intelligence is indeed determined by heredity, the persons would be more similar their IQ will be. They conducted research by taking identical twin, fraternal twin , adoption, brother and sister, and cousins etc. Twin studies show a higher correlation between identical twins in IQ (+0.9) than between fraternal twins. Adoption studies show that adopted children somewhat resemble their biological parents in intelligence. But they found no relationship between adopted children. However sibling and parent and rearing together or apart have positive IQ correlation (+0.5). Based on these findings, researchers have estimated the heritability of intelligence. It is the proportion of the variance in any trait within given population that is attributable in genetic factors. Estimates of the heritability of intelligence vary, depending on the methods used. Most researchers believe that heritability of intelligence is between 60 percent and 80 percent. The contribution of genetic factors to intelligence increase with age because as individuals grow older, they tend to have less interaction with environmental factors and shaped more by the characteristics of those who care them. Environment and Intelligence Genes are not the entire factors that determine human intelligence. Rather environment variables too, are important to raise intelligence. It was first advocated by Flynn which is called Flynn effect. Flynn explained that better nutrition, increased urbanization, the advent of television, better education, cognitively demanding jobs etc. play significant roles in shaping intelligence. Researcher explained the role of environment by dividing the influence into two components environmental deprivation and environmental enrichment. Absence of key forms of environmental stimulation are the environmental deprivation, such as poverty, deprivation etc. reduces the intelligence.