Exam 2 Flashcards
Reinforcer = ?
= stimulus
stimulus, event, change of conditions
Reinforcement = ?
= process or effect
delivery of the reinforcer and the resulting increase in behavior
Everyday Reinforcement: “Naturally “ occurring
Turning key to start your car
Eating your lunch to feel less hungry
Putting in earbuds to listen to music
Checking your Fitbit to see calories burned after workout
Checking syllabus/planner to feel less anxious about missing a deadline
Everyday Reinforcement: Programmed / arranged
Grades, performance bonuses, badges, BOGO deals, helmet stickers in college football
Defining Features of Reinforcers
Contingent —> Immediate —-> Strengthen / Increase = CISI (“kissy”)
Reinforcers v. Rewards
Rewards = tangible stuff not typically associated with a long-term, natural maintenance
Reinforcers ideally jump start then “trap” performance in naturally occurring contingencies
Positive Reinforcement Simply…
Stimulus is added
Contingent on a response
Which increases the future probability of the response
The future increase in the response is a critical feature in defining reinforcement
Examples of Positive Reinforcement
antecedent:
text from a friend
response:
reply to text
stimulus added:
friend loves your reply
effect on behavior:
increase in future frequency of response
antecedent:
cookies in the lobby
response:
eat a cookie
stimulus added:
delicious taste in mouth
effect on behavior:
increase in future frequency of response
Examples of Negative Reinforcement
antecedent:
alarm
response:
turn off alarm
stimulus added:
alarm stops sound
effect on behavior:
increase in future frequency of response
antecedent:
child crying
response:
parent picks up and hugs child
stimulus added:
crying reduced
effect on behavior:
increase in future frequency of response
Negative Reinforcement
For negative reinforcement to occur, there must be an aversive (or irritating) antecedent condition for which removal would be reinforcing.
contingency
Contingency = describes relationship among an antecedent, a behavior, and a consequence
External consequences can be effective without harming internal motivation when:
Used to increase new or low-rate responses (rather than added to preferred activity)
Prioritize natural contingencies, fade supplemental reinforcers as soon as possible
Reinforcement is contingent on competence rather than completion
Reinforcement is unannounced
shaping
Shaping involves differential reinforcement of successive approximations of a target behavior until the terminal response occurs
Each stair is a closer approximation of one desired response
ex. siting at the table to work, shape ballroom dancing, teaching puppy new tricks, medical procedures
Skills to Target with Shaping
Shaping is appropriate when some approximation of the response already occurs, though possibly at a low rate and not in the desired context
Role of Extinction in Shaping
Extinction involves interrupting the response-reinforcer relationship which produces a short-term increase in close approximations of that response and long-term weakening of that previously reinforced response
Extinction plays a role in shaping by increasing the likelihood of a new, closer approximation for the teacher to reinforce
Reinforcing some responses while withholding reinforcers for others is referred to as “differential reinforcement”
Implementing Shaping
Determine whether criterion-level behavior already occurs; if so, use a different technique
Pick first approximation (starting response)
Pick shaping steps
Choose a reinforcer
Differentially reinforce approximations
Pace instruction to avoid long breaks between reinforced approximations