,Liberty University PSYC 320 Quiz 6 | Behavior
Modification (2026) Q&A
1. A stimulus that is correlated with reinforcement for a response is called a(n):
A) S-delta
B) Discriminative stimulus (SD)
C) Conditioned reinforcer
D) Unconditioned stimulus
Correct Answer: Discriminative stimulus (SD)
Rationale: An SD is a stimulus in the presence of which a particular response has been
reinforced in the past. It signals that reinforcement is available for that response. An S-delta
signals that reinforcement is not available.
2. An S-delta is best described as:
A) A cue that a certain response will be reinforced
B) A cue that a certain response will not pay off
C) A signal that punishment is coming
D) A neutral stimulus with no effect
Correct Answer: A cue that a certain response will not pay off
Rationale: An S-delta is a stimulus in the presence of which a particular response has not
been reinforced in the past. It signals that the response will not be reinforced. This is the
opposite of an SD.
3. A physical event or object in one's immediate surroundings that impinges on sensory
receptors and can affect behavior is called:
A) A reinforcer
B) A discriminative stimulus
C) A stimulus
,D) A punisher
Correct Answer: A stimulus
Rationale: A stimulus is any physical event or object in one's immediate surroundings that
impinges on sensory receptors and can affect behavior. This is the broadest term for
environmental events that influence behavior.
4. A sign on an office door says "Out to Lunch." For knocking on the door, this sign is:
A) An SD
B) An S-delta
C) A conditioned response
D) A fading dimension
Correct Answer: An S-delta
Rationale: The sign signals that knocking will not be reinforced (no one is there to answer).
Therefore, it functions as an S-delta for the response of knocking. An SD would signal that
knocking would be reinforced.
5. A child sees a picture of a camel and says "camel." This verbal response is an example of:
A) A mand
B) An echoic
C) A tact
D) An intraverbal
Correct Answer: A tact
Rationale: A tact is a verbal response under the control of a nonverbal stimulus (the picture
of the camel). The child labels what they see. A mand is a request, and an echoic is repeating
what someone else says.
6. A stimulus in the presence of which a response will be reinforced is called:
A) A conditioned reinforcer
, B) A discriminative stimulus
C) An S-delta
D) An unconditioned stimulus
Correct Answer: A discriminative stimulus
Rationale: A discriminative stimulus (SD) signals that a particular response will be
reinforced. It sets the occasion for the behavior. An S-delta signals that the response will not
be reinforced.
7. When the general environmental setting changes the way we respond to a particular
stimulus, this is called:
A) Stimulus discrimination
B) Stimulus generalization
C) Contextual control
D) Stimulus equivalence
Correct Answer: Contextual control
Rationale: Contextual control refers to the influence of the general environmental setting on
how an individual responds to specific stimuli. The context signals which behaviors will be
reinforced in that setting.
8. In simultaneous discrimination training, the individual is presented with:
A) One stimulus at a time
B) Two or more stimuli at the same time
C) Stimuli that are always identical
D) Stimuli that are always neutral
Correct Answer: Two or more stimuli at the same time
Rationale: Simultaneous discrimination involves presenting two or more stimuli at the same
time, and the individual must choose the correct one. Successive discrimination presents
stimuli one at a time.
Modification (2026) Q&A
1. A stimulus that is correlated with reinforcement for a response is called a(n):
A) S-delta
B) Discriminative stimulus (SD)
C) Conditioned reinforcer
D) Unconditioned stimulus
Correct Answer: Discriminative stimulus (SD)
Rationale: An SD is a stimulus in the presence of which a particular response has been
reinforced in the past. It signals that reinforcement is available for that response. An S-delta
signals that reinforcement is not available.
2. An S-delta is best described as:
A) A cue that a certain response will be reinforced
B) A cue that a certain response will not pay off
C) A signal that punishment is coming
D) A neutral stimulus with no effect
Correct Answer: A cue that a certain response will not pay off
Rationale: An S-delta is a stimulus in the presence of which a particular response has not
been reinforced in the past. It signals that the response will not be reinforced. This is the
opposite of an SD.
3. A physical event or object in one's immediate surroundings that impinges on sensory
receptors and can affect behavior is called:
A) A reinforcer
B) A discriminative stimulus
C) A stimulus
,D) A punisher
Correct Answer: A stimulus
Rationale: A stimulus is any physical event or object in one's immediate surroundings that
impinges on sensory receptors and can affect behavior. This is the broadest term for
environmental events that influence behavior.
4. A sign on an office door says "Out to Lunch." For knocking on the door, this sign is:
A) An SD
B) An S-delta
C) A conditioned response
D) A fading dimension
Correct Answer: An S-delta
Rationale: The sign signals that knocking will not be reinforced (no one is there to answer).
Therefore, it functions as an S-delta for the response of knocking. An SD would signal that
knocking would be reinforced.
5. A child sees a picture of a camel and says "camel." This verbal response is an example of:
A) A mand
B) An echoic
C) A tact
D) An intraverbal
Correct Answer: A tact
Rationale: A tact is a verbal response under the control of a nonverbal stimulus (the picture
of the camel). The child labels what they see. A mand is a request, and an echoic is repeating
what someone else says.
6. A stimulus in the presence of which a response will be reinforced is called:
A) A conditioned reinforcer
, B) A discriminative stimulus
C) An S-delta
D) An unconditioned stimulus
Correct Answer: A discriminative stimulus
Rationale: A discriminative stimulus (SD) signals that a particular response will be
reinforced. It sets the occasion for the behavior. An S-delta signals that the response will not
be reinforced.
7. When the general environmental setting changes the way we respond to a particular
stimulus, this is called:
A) Stimulus discrimination
B) Stimulus generalization
C) Contextual control
D) Stimulus equivalence
Correct Answer: Contextual control
Rationale: Contextual control refers to the influence of the general environmental setting on
how an individual responds to specific stimuli. The context signals which behaviors will be
reinforced in that setting.
8. In simultaneous discrimination training, the individual is presented with:
A) One stimulus at a time
B) Two or more stimuli at the same time
C) Stimuli that are always identical
D) Stimuli that are always neutral
Correct Answer: Two or more stimuli at the same time
Rationale: Simultaneous discrimination involves presenting two or more stimuli at the same
time, and the individual must choose the correct one. Successive discrimination presents
stimuli one at a time.
