AP Psychology Practice Quiz: Classical Conditioning

Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026

Test your understanding with short quizzes. This quiz has 16 questions to check your progress.

Question 1 of 16

In the initial stages of classical conditioning, a stimulus that naturally and automatically triggers a response without any prior learning is called the:

A)Conditioned Stimulus (CS)B)Unconditioned Stimulus (UCS)C)Conditioned Response (CR)D)Unconditioned Response (UCR)

All Questions (16)

In the initial stages of classical conditioning, a stimulus that naturally and automatically triggers a response without any prior learning is called the:

A) Conditioned Stimulus (CS)

B) Unconditioned Stimulus (UCS)

C) Conditioned Response (CR)

D) Unconditioned Response (UCR)

Correct Answer: B

The unconditioned stimulus (UCS) is the element that elicits a natural, reflexive response (the UCR). For example, food is a UCS that naturally causes salivation.

A child is bitten by a small dog and develops a fear of all small animals. This fear of other small animals, not just the dog that bit them, is an example of:

A) Stimulus discrimination

B) Extinction

C) Spontaneous recovery

D) Stimulus generalization

Correct Answer: D

Stimulus generalization occurs when an organism responds to stimuli that are similar to the original conditioned stimulus. The child's fear has generalized from the specific dog to a broader category of small animals.

If a trainer rings a bell before giving a dog a treat, the dog will eventually salivate to the sound of the bell alone. If the trainer then stops providing the treat after ringing the bell, what will likely occur?

A) Acquisition of the response will become stronger.

B) The conditioned response will become extinct.

C) Higher-order conditioning will take place.

D) The dog will experience habituation to the bell.

Correct Answer: B

Extinction is the gradual weakening and disappearance of a conditioned response. It occurs when the conditioned stimulus (the bell) is repeatedly presented without the unconditioned stimulus (the treat).

Every time someone flushes a toilet in the apartment building, the shower becomes very hot, causing the person in the shower to jump back. Over time, the person begins to jump back automatically after hearing the flush, before the water temperature changes. In this scenario, what is the conditioned stimulus (CS)?

A) The hot water

B) Jumping back

C) The sound of the toilet flushing

D) The shower

Correct Answer: C

The conditioned stimulus (CS) is the previously neutral stimulus (the flush) that, after being associated with the unconditioned stimulus (the hot water), comes to trigger a conditioned response (jumping back).

After a conditioned response has been extinguished, it may suddenly reappear at a later time when the conditioned stimulus is presented again. This phenomenon is known as:

A) Stimulus generalization

B) Higher-order conditioning

C) Spontaneous recovery

D) One-trial conditioning

Correct Answer: C

Spontaneous recovery is the reappearance of an extinguished conditioned response after a period of rest and with no further conditioning.

A person develops a taste aversion to pizza after eating it and then coming down with the stomach flu. This is a powerful form of learning primarily because it demonstrates:

A) The importance of the order of stimulus presentation for acquisition.

B) The process of stimulus discrimination.

C) The effectiveness of higher-order conditioning.

D) One-trial conditioning and biological preparedness.

Correct Answer: D

Taste aversions are unique because they can form after a single pairing of the food (CS) and illness (UCS), which is one-trial conditioning. They also show biological preparedness, as organisms are biologically predisposed to associate tastes with illness.

The behavioral perspective, which evolved from early learning theories, primarily focuses on:

A) Unconscious desires and conflicts.

B) Observable behavior and environmental stimuli.

C) Internal mental processes like memory and problem-solving.

D) The achievement of self-actualization.

Correct Answer: B

The behavioral perspective is rooted in the idea that psychology should be an objective science that studies behavior without reference to unobservable mental processes. Classical conditioning is a key theory within this perspective.

A researcher conditions a dog to salivate to a ticking metronome. They then pair a black square with the metronome. After several pairings, the dog begins to salivate to the black square alone, even though the square was never paired with food. This is a demonstration of:

A) Counterconditioning

B) Higher-order conditioning

C) Stimulus generalization

D) Habituation

Correct Answer: B

In higher-order conditioning (or second-order conditioning), a well-established conditioned stimulus (the metronome) is used as an unconditioned stimulus to condition a new stimulus (the black square).

For successful acquisition in classical conditioning, what is generally the most effective order of presenting the stimuli?

A) The UCS should be presented long before the CS.

B) The CS and UCS should be presented at the exact same time.

C) The CS should be presented shortly before the UCS.

D) The UCS should be presented shortly before the CS.

Correct Answer: C

The order of presentation is crucial for acquisition. The most effective method is typically forward conditioning, where the conditioned stimulus (CS) is presented just before the unconditioned stimulus (UCS), allowing the CS to act as a signal for the upcoming UCS.

Therapies that aim to replace a negative conditioned emotional response (like fear) with a positive one (like relaxation) are based on the principle of:

A) Habituation

B) Spontaneous recovery

C) Counterconditioning

D) Stimulus generalization

Correct Answer: C

Counterconditioning is a therapeutic technique that uses classical conditioning to evoke new responses to stimuli that are triggering unwanted behaviors. For example, pairing a feared object with a pleasant stimulus like deep relaxation.

A dog is conditioned to salivate to a specific high-pitched tone. When a slightly different, lower-pitched tone is presented, the dog does not salivate. This illustrates:

A) Stimulus discrimination

B) Stimulus generalization

C) Extinction

D) Higher-order conditioning

Correct Answer: A

Stimulus discrimination is the learned ability to distinguish between a conditioned stimulus and other, similar stimuli that do not signal an unconditioned stimulus. The dog has learned that only the specific high-pitched tone predicts food.

When you first put on a watch, you are consciously aware of the pressure on your wrist. After a while, you no longer notice it. This diminished response to a constant, repeated stimulus is called:

A) Extinction

B) Habituation

C) Acquisition

D) Conditioning

Correct Answer: B

Habituation is a simple form of learning where an organism decreases or ceases to respond to a stimulus after repeated presentations. It is different from extinction, which involves the unpairing of a CS and UCS.

In classical conditioning, the learned response to a previously neutral stimulus is the:

A) Unconditioned Stimulus (UCS)

B) Unconditioned Response (UCR)

C) Conditioned Stimulus (CS)

D) Conditioned Response (CR)

Correct Answer: D

The conditioned response (CR) is the response that is learned. It is elicited by the conditioned stimulus (CS) after the CS has been repeatedly paired with the unconditioned stimulus (UCS). It is often the same as, or similar to, the UCR.

The core principle of classical conditioning is the process of:

A) Associating a voluntary behavior with its consequence.

B) Learning through observing and imitating others.

C) Associating one stimulus with another to elicit a response.

D) A diminished response to a repeated stimulus.

Correct Answer: C

Classical conditioning is fundamentally about learning by association. A neutral stimulus becomes capable of eliciting a response because it has been associated with a stimulus that automatically produces that response.

The fact that it is easier to condition a fear of snakes or spiders than a fear of flowers or curtains suggests the concept of:

A) Higher-order conditioning

B) Counterconditioning

C) Biological preparedness

D) Stimulus discrimination

Correct Answer: C

Biological preparedness is the idea that organisms are innately predisposed to form certain associations over others. Associations that had survival value for our ancestors, like fearing potentially dangerous animals, are learned more readily.

Classical conditioning demonstrates how this type of learning applies to:

A) Only complex cognitive skills like problem-solving.

B) Only voluntary motor behaviors.

C) Both observable behavior and internal mental processes like emotion.

D) Only innate, reflexive actions that cannot be modified.

Correct Answer: C

Classical conditioning explains not just observable behaviors (like salivating or flinching) but also internal mental and emotional processes. For example, it provides a mechanism for how we learn fears, phobias, and other emotional responses.