Task
analysis is the process of breaking down a particular skill into a specific set
of behaviors that lead to execution and completion of a task or skill. Task
analysis is very helpful for inductively teaching skills because it helps to
increase fluency while moving through the necessary steps.
The first
step to successful task analysis is to identify the target skill. The next step
is to write out all of the necessary behaviors that need to occur to execute
the target skill. So, for example, if the target skill is making a turkey
sandwich, the behavioral steps may be: Step 1 --Take out a plate; Step 2 – Go
to the refrigerator; Step 3 – Take out turkey; so on and so forth until there
is a sandwich sitting on a plate ready to eat. The amount of specificity
required for each behavioral step is going to depend on the current skill level
of the learner. Therefore, while the behavioral steps may be objective, the
task analysis is going to be subjective and suited towards the particular
learner.
The typical
applications of task analysis for teaching a skill are either through forward-,
backward-, or total task-chaining.
Backward chaining
is where the learner goes through all of the steps to complete a task with appropriate
prompting on each step until the last step, where they are then given the
opportunity to complete the step independently. Once the final step is
mastered, the instructor then fades out the prompt on the last two steps, then
the last three, so on and so forth until all of the behaviors required to
execute the target skill are mastered. So, for example, in making a turkey
sandwich, the instructor would assist or prompt with all of the steps up to the
last one, which may be cutting the sandwich in half before eating it.
Forward chaining
allows the learner to complete the initial step independently followed by appropriate
prompts for the remaining steps. Once the learner has mastered the initial
step, then they are given the opportunity to complete the first two steps, then
the first three, so on and so forth until all of the behaviors required to
execute the target skill are mastered. So, for example, in making a turkey
sandwich, the instructor would allow the learner to take out the plate, and
then would assist or prompt with the remaining steps.
Total task
chaining is where the learner is given the opportunity to complete each
behavior relating to the target skill with independence at each step, with the
instructor providing prompts as necessary throughout the execution of the skill.
So, for example, in making a turkey sandwich, the instructor may allow the
learner to perform all of the steps independently, and when they get stuck, go
in and prompt the target behavior, and then allow them to continue
independently.
In summary,
task analysis is a way of breaking down components of a skill into specific
behaviors required to execute a skill or complete a task.
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