Imitation Training increase

How can Imitation Training increase echoic (vocal imitation)for an individual?
please include the following :
[Rationale should include the following aspects:
a) the behavioral principles on which imitation training is based.
b) how the predicted effects of vocal imitation align with echoic/vocal imitation
[List ALL steps involved in instruction for imitation training in other words how do you use imitation training to increase vocal imitation in an individual, the
instructor should be able to understand all steps involved in completing the instruction simply by reading your descriiption.
You must provide citations.

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