Topic 11 Flashcards
behavioral chain
complex behavior comprised of several component behaviors that occur together in certain order
stimulus-response chain
also known as behavioral chain
- each behavior produces stimulus that acts as an S^D for next behavior
what is the final response followed by?
reinforcement
- praise is often given for successful completion of link in chain
not all sequences of behavior are ______ ______
behavioral chains
task analysis
identifying all antecedent stimuli and responses in sequence that comprises a behavioral chain
how can task analysis be done?
- observe someone else who is competent at task, while behavior analyst records all S^Ds and responses
- recruit an expert who describes all S^Ds and responses, recorded by behavior analyst
- behavior analyst performs task themselves, recording all S^Ds and responses
what happens after analysis?
data sheet is created
individuals progress is documented
count how many links the individual completes and blacken the number
creates a “graph” on data sheet itself
what does chaining procedures apply?
specific prompting and fading strategies to each stimulus-response component in chain
total task presentation
- individual attempts all links the chain from beginning to end
- prompting is provided for each link as required
- natural reinforcement is given only after last link
- task must not be too long or complex
- ability of learner and teacher must be considered
graduated guidance
physical prompting and fading
- hand-over-hand guidance
- shadowing
pros and cons of total task presentation
pros: suitable for tasks that are not overly long or complex
cons: not appropriate for people with developmental disabilities, often requires graduated guidance- challenging to implement
backward chaining
- prompting and fading are used to teach complex behavior starting with final link
- natural reinforcer given after last link in chain is completed
- link is repeated until learner has mastered it- all prompts faded
- second link is added with prompts
- conditioned reinforcer given after second-last link is completed
- process is continued with each preceding link in chain
pros and cons of backward chaining
pros: typically used with learners who have limited abilities- complete chain every time
cons: requires additional preparation by behavior analyst
forward chaining
- prompting and fading used to teach complex behavior starting with first link
- natural reinforcer is delivered only when last mastered link is completed
- next mastered link in chain is added
- conditional (artificial) reinforcer is delivered between link of chain
pros and cons of forward chaining
pros: retains sequential order of chain
cons: requires additional preparation by analyst