The Points (2, 4) and (5, 16) Both Lie on the Same

question 2

Multiple Choice

The points (2, 4) and (5, 16) both lie on the same straight-line graph. Find the value for the gradient.

• A) 12
• B) 3
• C) 0.25
• D) 2

Understand the principle of mental age and its role in determining IQ.

Know who contributed to the development of the intelligence quotient concept.

Explain the stability and significance of individual differences in intelligence.

Understand the controversies surrounding intelligence measurement.

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Definitions:

Logical Reasoning

The process of using a rational, systematic series of steps based on sound mathematical procedures and given statements to arrive at a conclusion.

Concrete Operational

A stage in Piaget's theory of cognitive development, occurring from about 7 to 11 years old, where children gain the ability to think logically about concrete events.

Preoperational

The stage in Piaget's theory of cognitive development in which children from about 2 to 7 years old develop memory and imagination, but do not yet think logically.

Formal Operational Thought

A stage of cognitive development in which individuals are able to think abstractly, reason logically, and manage problems systematically.