Class 12 Psychology - ISC

Intelligence and Ability

The chapter 'Intelligence and Ability' in Class 12 ISC Psychology delves into the nature of intelligence, exploring how psychologists define and measure human cognitive capacities. You will study major psychometric approaches, information-processing theories, and contemporary models like Sternberg's Triarchic Theory and Gardner's Theory of Multiple Intelligences. The chapter also covers the assessment of intelligence, the calculation of the Intelligence Quotient (IQ), the distribution of IQ scores, and the extremes of intelligence such as intellectual disability and giftedness. Understanding these concepts is vital as they form a core component of the ISC board examination, often featuring in conceptual, application-based, and essay-type questions.

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Key Concepts

Psychometric Approach

Views intelligence as an aggregate of abilities, focusing on how people differ in terms of a single general factor or multiple specific traits.

Information-Processing Approach

Describes intelligence in terms of the processes people use to solve problems, focusing on cognitive functions rather than fixed traits.

Gardner's Theory of Multiple Intelligences

Proposes that intelligence is not a single entity, but rather consists of eight independent types of intelligence, ranging from linguistic to interpersonal.

Sternberg's Triarchic Theory

Divides intelligence into three types: Componential (analytical), Experiential (creative), and Contextual (practical).

Intelligence Quotient (IQ)

A numerical measure of intelligence calculated by dividing a person's mental age by their chronological age and multiplying by 100.

Important Formulas

IQ = (Mental Age / Chronological Age) * 100
Mental Age (MA) is a measure of a person's intellectual development relative to people of their actual chronological age (CA)

Board Exam Info

In the ISC Class 12 Psychology examination, this chapter typically carries around 6 to 8 marks. Questions frequently include short-answer questions defining specific theories, differentiation-based questions (such as comparing psychometric and information-processing approaches), and application-based numerical problems on calculating IQ.

Frequently Asked Questions

What is the difference between mental age and chronological age?

Chronological age is a person's actual age in years, while mental age refers to the measure of a person's intellectual capacity compared to the average age group. IQ is calculated by dividing mental age by chronological age and multiplying by 100.

Are high IQ and high emotional intelligence the same thing?

No, high IQ measures cognitive, logical, and academic potential, whereas emotional intelligence (EQ) measures the ability to understand, use, and manage your own emotions positively to relieve stress and communicate effectively.

What is the normal curve of intelligence?

It is a bell-shaped frequency distribution curve of IQ scores where the majority of people (about 68%) score within the average range of 90 to 110, with extremes tapering off on both ends.

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