Behavior vs Response vs response class
A child is instructed to clean up their toys before transitioning to the next activity. Upon hearing the instruction, the child screams once and then becomes quiet. From a behavioral measurement perspective, this single instance of screaming is best described as a ______.
Response
A BT presents a reading demand by stating, “It’s story time.” The client engages in aggression immediately following the demand. The BT removes the reading task contingent on aggression. Across sessions, aggression decreases.
Is the removal of the demand functioning as reinforcement or punishment?
Negative punishment (removal of demand decreases aggression).
Tricky because removal often signals negative reinforcement — but here behavior decreased.
What is the target behavior?
Aggression.
What happens immediately after aggression?
The reading demand is removed.
What happens over time?
Aggression decreases.
A child hears a loud balloon pop during a party and immediately jumps, covers their ears, and begins crying. No one delivers consequences following this reaction. The same reaction occurs each time a balloon pops, even in different environments.
Is this operant or respondent conditioning?
Respondent conditioning
(Reflexive response elicited by stimulus; no consequence shaping it.)
During discrete trial teaching, a child receives a token after every 4 correct responses. The therapist does not vary this requirement across trials or sessions.
Fixed Ratio 4 (FR4)
During circle time, reinforcement for sitting appropriately is available. During recess, reinforcement for sitting is not available. A colored visual cue signals whether sitting behavior will be reinforced.
What schedule is this?
Multiple schedule
Why: Two schedules alternate AND there is a discriminative stimulus signaling which schedule is active
Screaming, dropping, and throwing toys when given a demand are all part of the same
Response class
A teenager frequently delays starting their homework in the evenings. In response, the parent repeatedly reminds and nags the teen to begin working. The teen eventually begins completing their homework assignments shortly after the nagging starts. Over several weeks, the teen begins initiating and completing homework more quickly following the onset of parental reminders, and the rate of homework completion increases overall.
Based on this scenario, is the increase in homework completion most accurately explained by reinforcement or punishment, and what type?
Negative reinforcement (removal of nagging increases behavior).
What’s the Behavior?
Homework completion.
What Happens After the Behavior?
The parent’s nagging stops.
What Changes Over Time?
Homework completion increases.
Why It Is Negative Punishment
“Negative” = something is removed
“Punishment” = behavior decreases
During circle time, a child begins screaming. The teacher immediately removes the child from circle and allows them to sit in the calm-down area. Over several weeks, screaming during circle time increases.
Operant conditioning
(Screaming is strengthened by escape from circle time.)
A classroom teacher provides praise for on-task behavior. The praise is delivered after unpredictable amounts of time have passed (sometimes after 30 seconds, sometimes after 2 minutes), as long as the student is on-task at the moment the teacher checks.
What schedule is in effect?
Variable Interval (VI)
(Time-based, unpredictable.)
A therapist alternates between reinforcing hand-raising and placing it on extinction across different 10-minute intervals. However, no cue or signal indicates when reinforcement is available.
What schedule is this?
Mixed schedule
Why: Two schedules alternate with NO discriminative stimulus signaling the change.
Head hitting that occurs in math but not during play suggests behavior
Stimulus control
A child is given extra screen time after completing chores. Chores increase. Later, chores stop increasing even though screen time continues.
Why did this happen?
Reinforcer lost effectiveness — likely due to satiation (AO).
A child experiences repeated teasing at school. Now, when hearing the school bell, the child experiences stomach aches and sweating.
Respondent conditioning
(Physiological response elicited by conditioned stimulus.)
An unconditioned stimulus (US)
→ Teasing (aversive social stimulus)
An unconditioned response (UR)
→ Anxiety / physiological stress
A previously neutral stimulus paired with the US
→ School bell
The neutral stimulus becomes a conditioned stimulus (CS)
→ School bell now elicits anxiety
The new response is a conditioned response (CR)
→ Stomach aches, sweating when hearing bell
A child engages in high steady rates of responding with minimal post-reinforcement pause. Data show reinforcement occurs after unpredictable numbers of responses.
What schedule is most consistent with this pattern?
Variable Ratio
Variable ratio schedules produce:
Very high response rates
Very steady responding
Strong resistance to extinction
Slot machines.
You don’t know which lever pull will pay out.
Reinforcement occurs after an unpredictable number of responses.
People respond rapidly and steadily.
They don’t take long breaks after a win.
A client must first complete 5 math problems. After completion, they are allowed to request a break. After the break request, they receive access to preferred toys.
Each step must be completed before accessing the next.
What schedule is this?
Chained schedule
Why: Completion of one component produces the stimulus for the next.
A client independently says “juice please,” “I want juice,” and “drink please.” These are different ______ within the same response class.
Responses
A young child runs into the street without permission while playing outside. In response, the parent immediately yells loudly at the child. Following several similar incidents in which yelling occurs contingent upon running toward the street, the child’s street-running behavior decreases significantly over time. However, the parent continues to yell frequently at the child, even during times when the child is playing safely and following directions appropriately.
Running decreased due to positive punishment
Parent yelling maintained by negative reinforcement (escape from fear) or emotional responding
A child hears thunder during a storm and begins shaking. After repeated storms without harm, shaking gradually decreases.
Respondent extinction
A behavior analyst is working with an adolescent client on completing independent homework assignments. Initially, the client receives reinforcement (access to preferred screen time) after every completed assignment (FR1 schedule). After consistent success, the analyst begins systematically thinning the schedule of reinforcement by increasing the response requirement to FR3 (reinforcement delivered after every three completed assignments) and later to FR5.
Following the increase in the response requirement, the client begins showing signs of frustration, including verbal complaints, task avoidance, and brief episodes of problem behavior. These behaviors emerge shortly after the schedule change and were not present at the higher reinforcement density.
What is the most likely explanation?
Ration strain
The organism “gives up” because the work requirement becomes too high.
A teen can either:
Do homework (reinforced every 5 responses)
Scroll social media (reinforced continuously)
Both options are available at the same time, and the teen shifts between them.
What schedule arrangement?
Concurrent schedule
During FBA, aggression and elopement both result in escape. Even though they look different, they are in the same:
Functionally equivalent response class
During dinner, a child is presented with a serving of vegetables and is instructed to eat them before accessing any other food. The child responds by pushing the plate away, turning their head, and verbally refusing to eat. In response to the refusal, the parent removes the vegetables from the table and replaces them with a preferred food item. Over time, the child’s refusal behaviors increase in frequency and intensity whenever vegetables are presented.
Negative reinforcement of refusal (removal of nonpreferred increases refusal).
A child enters a dentist office and immediately cries (before any procedures). During the appointment, crying results in the procedure being paused. Crying increases over time.
What processes are occurring?
➡ Respondent conditioning (fear elicited by setting)
➡ Operant conditioning (crying reinforced by escape)
Two processes at once.
A client can choose between:
Completing worksheets (reinforced every 5 responses)
Playing matching game (reinforced every 2 responses)
The client allocates more time to the matching game.
What schedule arrangement is operating?
Concurrent schedules
A therapist reinforces compliance during morning sessions and places compliance on extinction during afternoon sessions. The client is not provided with any signal that the contingency has changed.
What schedule is operating?
Mixed schedule