alleryIn Krashen's formula "i+1", the letter "i" stands for the learner's:
APresent language level
BAge and school class
CMarks in the last test
DSize of word list
Answer & Solution
Correct answer: A. Present language level
1. The input hypothesis says learners progress when input is slightly ahead of where they are.
2. Krashen labels the learner's current stage "i" and the next stage "+1".
3. So "i" is the learner's present language level, not age, class, marks or word-list size.
**Why not the others:** Age, class, test marks and word-list size are outside measures; "i" is the learner's own interlanguage, meaning present language level.
_Source: Wikipedia, "Input hypothesis", section "Overview" (revision 1380165607)_
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