Little Nicholas Is Learning to Speak, and It Is Clear

question 31

Multiple Choice

Little Nicholas is learning to speak, and it is clear to his parents that he understands far more words than he can say. Psychologists refer to this as a receptive-________ lag.

• A) productive
• B) expressive
• C) expository
• D) expiratory

---

Definitions:

Involuntary Behavior

Actions that occur without conscious control, often reflexive or automatic in nature.

Conditioned Stimulus

In classical conditioning, a previously neutral stimulus that, after becoming associated with the unconditioned stimulus, eventually comes to trigger a conditioned response.

Neutral Stimulus

A stimulus that initially produces no specific response other than focusing attention, until it is paired with an unconditioned stimulus.

Natural Response

An unlearned or innate reaction to a given stimulus, typically occurring without conscious thought.