law of effect
the principle that behaviors followed by favorable consequences become more likely and that behaviors followed by unfavorable consequences become less likely
operant chamber (Skinner box)
a chamber containing a bar or key that an animal can manipulate to obtain a food or water reinforcer; attached devices record the animal’s rate of bar pressing
Who founded the operant chamber?
B.F. Skinner
reinforcement
any event that strengthens a preceding response
shaping
reinforcers gradually guide behavior toward closer and closer approximations of the desired behavior.
positive reinforcement
increases behaviors by presenting positive reinforcers, any stimulus that, when presented after a response, strengthens the response (addition)
negative reinforcement
increases behaviors by stopping or reducing negative stimuli, any stimulus that, when removed after a response,
strengthens the response (subtraction)
primary reinforcement
unlearned, innately reinforcing stimuli
conditioned(secondary) reinforcement
gains power through association with primary reinforcer
immediate reinforcement
occurs immediately after a behavior
delayed reinforcement
involves time delay between desired response and delivery of reward
reinforcement schedule
a pattern defines how often a desired response will be reinforced
continuous reinforcement schedule
reinforces the desired response every time it occurs
partial (intermittent) reinforcement
reinforces a response only part of the time; results in slower acquisition of a response but much greater resistance to extinction than does continuous reinforcement.
fixed-ratio reinforcement
Every so many: reinforcement after every nth behavior
variable-ratio reinforcement
After an unpredictable number: reinforcement after a random number of behaviors
fixed-interval reinforcement
Every so often: reinforcement for behavior after a fixed time
variable-interval reinforcement
Unpredictably often: reinforcement for behavior after a random amount of time
punishment
administers an undesirable consequence or withdraws something desirable in an attempt to decrease the frequency of behavior
positive punishment
presenting a negative consequence after an undesired behavior is exhibited, making the behavior less likely to happen in the future (addition)
negative punishment
removing a desired stimulus after a particular undesired behavior is exhibited, making the behavior less likely to happen in the future. (subtraction)
applications of operant conditioning
At school: Computer and adaptive learning software used in teaching and learning
In sports: Behavioral methods implemented in shaping behavior in athletic performance
At work: Rewards successfully used to increase productivity
In parenting: Basic rules of shaping used in parenting