Advertisements
Advertisements
प्रश्न
What is IQ? How do psychologists classify people on the basis of their IQ scores?
उत्तर
In 1905, Alfred Binet and Theodore Simon made the first successful attempt to measure intelligence. In 1908, the scale was revised and the concept of Mental Age (MA) which is a measure of a person’s intellectual development relative to people of her/his age group. Chronological Age (CA) is the biological age from birth. Retardation was defined by Binet and Simon as being two mental age years below the chronological age.
The concept of IQ was devised by a German psychologist, William Stern in 1912. IQ means Intelligence Quotient (IQ) which refers to mental age divided by chronological age, and multiplied by 100.
IQ = (MA/CA) × 100
When MA = CA then IQ = 100
When MA > CA then IQ > 100
When MA < CA then IQ <100
\According to psychologists, IQ scores are distributed in the population in such a way that the scores of most people tend to fall in the middle range of the distribution. Only a few people have either very high or very low scores. The mean IQ score in a population is 100. People with IQ scores in the range of 90–110 have normal intelligence. Those with IQ below 70 are suspected to have ‘intellectual disability’, while persons with IQ above 130 are considered to have exceptional talents.
APPEARS IN
संबंधित प्रश्न
To what extent is our intelligence the result of heredity (nature) and environment (nurture)? Discuss.
All persons do not have the same intellectual capacity. How do individuals vary in their intellectual ability? Explain.
______ and performance tests help reduce the cultural bias usually associated with intelligence tests.
Giftedness from the teachers’ point of view depends on a combination of ________.
The IQ range for individuals with mild intellectual deficiency is ________.
Name the psychologist who proposed the concept of Intelligence Quotient.
____________ is an exceptional general ability shown in superior performance in a wide variety of areas.
Identify the formula for calculating the intelligence quotient.
In graphical representations showing stress levels on X-axis and performance on Y-axis, best performance can be expected at
The cognitive Assessment system can be used with people between the age group of:
When the IQ of an individual is found to be below ______, he is considered to be intellectually deficient.
The Indian adaptation of the Wechsler Adult Performance intelligence scale was developed by:
According to Piaget the children are able to grasp the concept of object permanence and conservation in:
A highly creative man must be of high level of intelligence. This is claimed by
Who among the following was the first person that devised systematic tests to measure intelligence test?
______ involves the complete awareness of our relationship with the natural world.
Which among the following approach proposes that a group's 'economic maintenance system plays a vital role in the origin of culture and behavioural variation?
What is the time for pre-birth?
Late childhood ends ______
Hurlock divided how many parts of the life of man?
When the memory becomes sharp in a child?
In an experiment examining the effect of mood on intelligence, participants are randomly assigned to watch either a funny movie or a sad movie before they complete an IQ test. The funny movie is shown in a classroom, while the sad movie is shown in the student lounge. The most obvious problem with this experiment is ______
Name the psychologist who proposed the concept of Intelligence Quotient.
Read the case and answer the question that follows.
|
Alfred Binet, in 1905, was requested by the French government to devise a method by which students who experienced difficulty in school could be identified. Binet and his colleague, Theodore Simon, began developing questions that focused on areas not explicitly taught in schools those days, such as memory, and attention skills related to problem-solving. Using these questions, Binet determined which were ones that served as the best predictors of school success. Binet quickly realized that some children were able to answer more advanced questions than older children were generally able to answer and vice versa. Based on this observation, Binet suggested the concept of mental age, or a measure of intelligence based on the average abilities of children of a certain age group. This first intelligence test is referred to as the Binet-Simon Scale. He insisted that intelligence is influenced by many factors, it changes over time, and it can only be compared in children with similar backgrounds. |
‘Binet quickly realized that some children were able to answer more advanced questions than older children were generally able to answer and vice versa’. Why do individuals differ in intelligence? Using examples, give reasons for your answer.
Kyna and Kyra are identical twins. They were separated early in childhood. Will they show similarities in their intellectual characteristics? Give reasons for your answer.
