Regan suggests the future usefulness of seeing if further time spent
in the community would result in a refining of the rule which would take
it closer to the native speaker norm. In any case the study suggests that
contact with natives for advanced learners is necessary for the acquisition
of a community dialect and sociolinguistic competence and ultimately
integration into the native speech community. This confirms the results
of Marriott, Siegal and Lapkin, Hart and Swain.