MIDTERM 2 Flashcards
what is shaping used for? and what does it us?
to develop a target behaviour that a person does not currently exhibit, uses differential reinforcement
what is differential reinforcement and what does it involve?
when one particular behaviour is reinforced and all other behaviours are not reinforced in a particular situation. involves reinforcement and extinction
what does shaping in language use?
successive approximations
how do you begin shaping?
identify an existing behaviour that is an approximation of the target behaviour. this is the first approximation/starting behavoiur
when is shaping used?
when you want a novel behaviour, or a novel dimension of a behaviour, or to reinstate a behaviour that the person does not currently exhibit
what do prompts do?
used to increase the likelihood that a person will engage in the correct behaviour at the correct time
Function of prompts
produce an instance of the correct behaviour so that it can be reinforced
What is fading
gradual elimination of the prompts as the behaviour continues to occur in the presence of the SD
what purpose does fading serve
to transfer stimulus control from the prompts to the SD
what is a prompt
antecedent stimulus or event used to evoke the appropriate behaviour in a particular situation
Two major types of prompts
response prompts and stimulus prompts
what is a response prompts and different types?
behaviour of another person that evokes the desired response in the presence of the SD. verbal, gestural, modeling, physical
what is a verbal prompt
when the verbal behaviour of another person results in the correct response in the presence of the SD
gestural prompts
any physical movement or gesture of another person that leads to the correct behaviour in the presence of the SD is considered a gestural prompt
modeling prompts
any demonstration of the correct behaviour by another person that makes it more likely that the correct behaviour will occur at the right time
phsycial prompts
another person physically helps a person to engage in the correct behaviour at the right time
what are response prompts considered to be?
intrusive methods, they involve one person exerting control over another
what is a stimulus prompt
involves some change in a stimulus, or the addition or removal of a stimulus to make a correct response more likely
what is changing the SD called, in relation to prompting?
within-stimulus prompts
what is adding another stimulus or cue to a SD called, in relation to prompting?
extrastimulus prompts
what is the end result of transfer of stimulus control?
the correct behaviour occurs at the right time without any assistance
what are three ways to transfer stimulus control?
prompt fading, prompt delay, stimulus fading
what is prompt fading?
most common method. response prompt is removed gradually across learning trials until the prompt is no longer provided
what are the two kinds of prompt fading?
fading within prompts, fading across prompts
what is least to most prompting?
fading across prompts. involves using least intrusive prompts first and uses more intrusive prompts as necessary (increase assistance)
what is most to least prompting?
this is fading across prompts. most intrusive prompt is used first and then faded to less intrusive methods (decrease assistance)
what is prompt delay?
presenting the SD, wait, and then if the correct response is not maybe, you provide the prompt
what does the first trial begin with in prompt delay?
first trial always beings with 0 second delay between the SD and the prompt
what is stimulus fading?
whenever stimulus prompts are used to get a correct response to occur, some aspect of the SD or the stimulus situation is changed help the person make the correct discrimination. eventually stimulus prompts must be removed through stimulus fading to transfer stimulus control to the natural SD
what is a learning trial?
sequence of presenting the SD, prompting the response, and providing a reinforcer
what is a behavioural chain
complex behaviour consisting of many component behaviours that occur together in a sequence
what is a behavioural chain often called? why?
stimulus response chain, each behaviour or response in the chain produces a stimulus chaine that acts as an SD for the next response in the chain
what is the whole chain under
stimulus control
how can you make the outcome of a chain more reinforcing?
adding an establishing operation
what is a task analysis
process of analyzing a behavioural chain by breaking it down into its individual stimulus-response components
what is a chaining procedure?
strategies for teaching complex tasks
what is backwards chaining?
use prompting and fading to teach the last behaviour of the chain first. used most often with limited abilities