[…] a series of hypotheses that make up a coherent theory of second language acquisition. According to the
rules of scientific method, it will always be "just theory" and never be "definitely proven". The hypotheses I
will present have, however, been found to be consistent with a significant amount of data, experimental and
otherwise, and have not yet been confronted with serious counterexamples, in my view. They make up,
collectively, my "position". This does not mean that I necessarily "believe" them. What it does mean is that
these hypotheses are consistent enough with existing data to be worthy of consideration, and that they
appear to capture the data better than other existing generalizations.
KRASHEN, Stephen. Principles and practice in second language acquisition. (1982, p. 02)
O linguista estadunidense Stephen Krashen é conhecido mundialmente por sua teoria de Second language
aquisition. Em seu trabalho, ele elaborou uma teoria geral sustentada por cinco hipóteses que visam
analisar e explicar como um falante adquire uma segunda língua. Dentre as alternativas abaixo, qual não é
uma hipótese proposta por Krashen?