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Vi su al   R ei n forcem en t     A u di om etry   Click to edit Master subtitle style Subm i t t ed  by­   Am i t   K ashyap 1/5/19 1/5/19 VRA is the most commonly used reinforcement procedure. It is used to evaluate hearing in children who are cognitively between 5-6 and 36 months of age. Operant conditioning is a process by which the frequency of occurrence of a behavior (in this case, a conditioned head turn) is modified by what happens when the behavior occurs. VRA uses a conditioned head-turning respons