At 21 Months of Age,Pierre Has Acquired a Symbolic Thinking

question 95

Multiple Choice

At 21 months of age,Pierre has acquired a symbolic thinking system.Which substage of the sensorimotor stage is he in?

• A) Substage 3-secondary circular
• B) Substage 4-coordination of secondary schemes
• C) Substage 5-tertiary circular
• D) Substage 6-mental combinations

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Definitions:

Heritability

Refers to the proportion of variation among individuals in a population that is attributable to genetic variations.

General Intelligence

A theoretical measure of an individual's overall cognitive abilities, often associated with the ability to learn, problem-solve, and adapt to new situations.

Twin Pairs

Two offspring produced by the same pregnancy, categorized as either identical (monozygotic) or fraternal (dizygotic), useful in genetic studies.

Babbling Stage

A stage in child language acquisition, typically around 6 months of age, where infants spontaneously produce sounds and syllables, beginning the development of spoken language.