Theories in Second Language Acquisition Need to be Corroborated

Interdisciplinary research is a key thrust for the future . The present paper puts forth that most of the theories born in the last three decades are revitalization of old vocabulary; they are more or less assumption-based. Revitalization of old vocabulary should not be at the expense of discordance but corroboration of each other. In fact, the divergent epistemic orientations in SLA give a competitive nature to SLA. Thus, to the present writers, muchof the dialogue concerning the strengths and weaknesses of SLA theories fails to provide a balance between theoretical assumptions and empirically substantiated knowledge.