Piaget Proposed Four Stages of Cognitive Development

question 174

Multiple Choice

Piaget proposed four stages of cognitive development. Which of the following is NOT one of his stages?

• A) sensorimotor
• B) postoperational
• C) preoperational
• D) formal operational

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Definitions:

Benzophenone

An organic compound used primarily as a photoinitiator in polymer chemistry and as a flavor or fragrance additive, characterized by its ketone attached to two benzene rings.

Electrophile

A chemical species that is attracted to electrons and tends to accept electrons during a chemical reaction.

Acetophenone

An organic compound, characterized as the simplest aromatic ketone, used as a precursor to fragrances and resins.

o,p-positions

Refers to the ortho and para positions in a benzene ring, which are locations relative to a reference point on the ring.