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Input hypothesis
Wikipedia contributors, Wikipedia, n.d.
Read the originalRead on October 17, 2026
- What it is
- A summary of Stephen Krashen's input hypothesis: learners progress when they understand input slightly more advanced than their current level, which Krashen called i+1.
- How much weight it carries
- An encyclopedia summary rather than Krashen's own text, so use it for the definition only. Critics note that the i and +1 values are never clearly defined.
Facts taken from this source
- Krashen's input hypothesis says learners progress when they understand input that is slightly more advanced than their current level, which he called i+1.
“This states that learners progress in their knowledge of the language when they comprehend language input that is slightly more advanced than their current level.” (Overview, input hypothesis)