Revision: Intelligence Psychology HSC Science (General) 12th Standard Board Exam Maharashtra State Board

• According to Lewis Terman, “An ability to think on an abstract level is called Intelligence.”
• According to David Wechsler, ‘Intelligence is the aggregate or global capacity of an individual to act purposefully, to think rationally, and to deal effectively with his environment.’
• According to Binet (1905), “Intelligence refers to comprehension, intention, direction, and criticism.”
• According to Wyatt, “Intelligence is the power of apprehending the relationship between things.”
• According to Stern, “Intelligence is a general mental adaptability to new problems and conditions.”
• Spearman (1904), “Intelligence is the capacity for constructive thinking, a discovery of appropriate qualities and relations of the ideas that are before us.”
• According to Thurstone (1930), “Intelligence consists of many primary abilities.”
• Thus, Kimbel and Germazy state, “Intelligence consists of the abilities that a society values, because they are useful in meeting the society’s current needs. When these needs change, the abilities that define intelligence change.”

John Mayer and Peter Salovey defined Emotional Intelligence as the ‘Ability to perceive and monitor one’s own and others emotions, to discriminate among them and to use this information to guide one’s thinking and action.’

\[\mathrm{IQ}=\frac{\text{Mental Age (MA)}}{\text{Chronological Age (CA)}}\times100\]

• Mental Age (MA): The level at which a person can solve problems or answer questions, compared to the average abilities of a specific age group.
• Chronological Age (CA): The actual age in years.

• Intelligence is the ability to learn, reason, solve problems, and adapt to new situations.
• It involves thinking rationally and dealing effectively with the environment.
• Intelligence is multi-dimensional, not limited to academic marks.
• It is shaped by both heredity and environment.
• It includes different abilities like logical, linguistic, social, and practical skills.
• Intelligence helps in academic success and everyday problem-solving.

• The unitary theory states that intelligence is a single, general ability.
• According to this view, intelligence functions may appear different, but the basic ability is the same.
• Alfred Binet, Lewis Terman, and David Wechsler supported this view.
• They believed intelligence is one overall mental capacity.

• Theory Overview: Thorndike viewed intelligence as a set of independent abilities rather than a single factor.
• Abstract Intelligence: Involves thinking with ideas and symbols, like solving math problems or understanding language.
• Mechanical Intelligence: Refers to the ability to work with tools, machines, and physical tasks, such as fixing or building things.
• Social Intelligence: The ability to understand people and manage social situations, like resolving conflicts or leading a group.
• Key Idea: Each type of intelligence operates independently and is useful in different real-life contexts.

• Theory Overview: Thurstone proposed that intelligence consists of seven independent abilities, called Primary Mental Abilities (PMAs), rather than a single general intelligence.
• The Seven PMAs: These include Verbal Comprehension, Word Fluency, Number Facility, Spatial Visualization, Associative Memory, Perceptual Speed, and Reasoning.
• Key Features: Each ability is independent, but some overlap exists, showing partial support for Spearman’s g-factor.
• Strengths: Recognizes diverse cognitive strengths and allows for targeted educational interventions.
• Limitations: Some abilities overlap, and critics argue it still points toward a general intelligence (g).

• Spearman’s Theory: Charles Spearman proposed the Two-Factor Theory of intelligence—General (g) and Specific (s) factors.
• g-factor: This is your overall mental ability, like a phone's processor—it affects performance in all tasks (e.g., problem-solving, reasoning).
• s-factors: These are special abilities in specific areas like music, math, or art—just like apps on a phone that do different jobs.
• Factor Analysis: A statistical tool Spearman used to find patterns in test scores and discover the g and s factors in intelligence.
• Other Views: Psychologist Thorndike believed in multiple independent intelligences—abstract, concrete, and social—rather than one general factor.

• Fluid Intelligence (Gf): Refers to problem-solving and reasoning skills used in new situations without prior knowledge; peaks in adolescence, then declines.
• Crystallized Intelligence (Gc): Refers to accumulated knowledge and skills gained through learning and experience; increases with age.
• Key Differences: Gf is innate and fast, like a processor; Gc is learned and stored, like apps and data.
• Assessment Tools: Gf is tested with puzzles and analogies; Gc is tested with vocabulary and general knowledge questions.
• Educational Use: Gf improves through logic games and novel tasks, while Gc builds through quizzes, discussions, and content-based learning.

• Theory Overview: Gardner proposed that intelligence is not a single general ability but comprises eight distinct types.
• Eight Intelligences: These include Linguistic, Logical–Mathematical, Spatial, Musical, Bodily–Kinesthetic, Interpersonal, Intrapersonal, and Naturalistic.
• Learning Styles: Each person has unique strengths; some are good with words, others with numbers, music, people, or nature.
• Real-Life Relevance: Different careers require different types of intelligence—e.g., scientists use logical intelligence, musicians use musical intelligence, and teachers use interpersonal intelligence.
• Classroom Use: Helps teachers design lessons that align with students’ varied intelligences to improve engagement and understanding.

• Mental Age (MA) is the level of intellectual development at which a person performs on an intelligence test, compared to their Chronological Age (CA).
• The concept was introduced by Alfred Binet in 1908 through the Binet–Simon scale to identify children needing educational help.
• MA is calculated by finding the highest age level fully passed (basal age) and adding extra months for partially correct answers.
• If MA equals CA, development is average; if MA is higher than CA, intelligence is advanced; if MA is lower than CA, development is delayed.
• Mental age increases rapidly in childhood, slows in adolescence, and reaches a plateau in adulthood.
• It is useful for comparing children’s intellectual development and identifying those who need special support or advanced learning.

• Meaning: Individual intelligence tests are administered one-on-one, allowing for personalized interaction and observation of the subject's behavior, emotions, and responses.
• Examples: Common individual tests include Binet’s Scale, Wechsler Scale, Dr. Bhatia’s Performance Test, Arthur Point Scale, and Koh’s Block Design.
• Advantages: They enable better rapport-building, deeper insight into the subject’s emotional state, and are more effective for assessing creative thinking.
• Disadvantages: These tests are time-consuming, costly, and require a trained examiner for proper administration and interpretation.
• Characteristics: Tasks are untimed and performance-based, often involving object manipulation; non-verbal apparatus-based tests must be administered individually due to logistical limitations.

• Meaning: Verbal tests assess cognitive skills through language-based questions that require reading, writing, and verbal reasoning.
• Features: Involve literacy skills, comprehension, language-based problems, and higher-order thinking.
• Question Types: Include analogies, comprehension, classification, and following directions.
• Advantages: Measure complex thinking, distinguish intelligence levels, and are standardized.
• Disadvantages: Affected by language barriers, cultural bias, and literacy requirements.
• Uses: Helpful in education, career guidance, clinical diagnosis, and psychological research.

• Social intelligence refers to the ability to understand others, maintain good relationships, and function effectively in social situations.
• Success in life depends not only on academic intelligence but also on social intelligence.
• E.L. Thorndike introduced the term social intelligence; Howard Gardner included it as interpersonal intelligence.
• According to Karl Albrecht, social intelligence is the ability to get along well with others and gain their cooperation.
• High social intelligence is shown through respectful, cooperative, and positive behaviour, while toxic behaviour indicates low social intelligence.

• Emotional Intelligence is the ability to understand, use, and manage your own emotions and others' emotions.
• High EI traits include being calm, patient, independent, optimistic, and emotionally stable.
• The Ability Model follows four steps: Perceive, Use, Understand, and Manage emotions.
• EI matters more than IQ for success in relationships, work, and mental well-being.
• Benefits of high EI include better mental health, teamwork, empathy, and resilience.

• Human intelligence is based on experience, emotion, and values, while AI learns from data, algorithms, and patterns.
• Humans use common sense and ethics for decisions; AI follows predefined rules and lacks emotional judgment.
• Humans adapt well in new situations, while AI works best in trained scenarios.
• AI-powered devices include self-driving cars, chatbots, medical tools, and translation apps.
• AI is fast and consistent, but has limits like bias, no common sense, and needs human oversight in sensitive areas.