sentences:  Roediger and Gallo argue that after 30 years of research, they still cannot identify why or how we get the typical levels-of-processing effect.However, they still believe that even with these doubts that memory retrieval can be studied and subjected to experiments with "specified" retrieval conditions.Therefore, the levels-of-processing effect that TAP falls under supports that the "greater survival" of deep processing most likely occurs, which means that if they had any doubts about transfer-appropriate processing, they should consider the fact that retrieval has more of a range than a semantic processing theory would support, and more than likely thrive and survive.