Differentiate the Critical Period from the Sensitive Period in language learning.

Differentiate the Critical Period from the Sensitive Period in language learning.

• A. The Critical Period is a flexible timeframe where learning is easier but not impossible.
• B. Critical period is a stricter window; sensitive period is a flexible timeframe where learning is easier but not impossible.
• C. The Critical Period and the Sensitive Period refer to the same thing.
• D. The Sensitive Period ends at puberty and the Critical Period ends in early childhood.

Answer: (B)

The main idea here is how fixed the time window is for language learning. The Critical Period is thought of as a strict, biologically defined window during which language input leads to strong, native-like mastery. After that window, achieving native-like pronunciation and grammar becomes much harder, reflecting limited brain plasticity for language at that stage. In contrast, the Sensitive Period is more flexible: there’s a time when language learning is especially easy and efficient, but learning can still happen later with more effort, though it may not reach native-like levels. So, the Critical Period is a tighter, more constrained window, while the Sensitive Period is a broader, more forgiving timeframe. That distinction matches the statement describing the Critical Period as a stricter window and the Sensitive Period as a flexible timeframe. The other options either treat the Critical Period as flexible, claim they’re the same, or misstate when these windows end.

The main idea here is how fixed the time window is for language learning. The Critical Period is thought of as a strict, biologically defined window during which language input leads to strong, native-like mastery. After that window, achieving native-like pronunciation and grammar becomes much harder, reflecting limited brain plasticity for language at that stage.

In contrast, the Sensitive Period is more flexible: there’s a time when language learning is especially easy and efficient, but learning can still happen later with more effort, though it may not reach native-like levels. So, the Critical Period is a tighter, more constrained window, while the Sensitive Period is a broader, more forgiving timeframe.

That distinction matches the statement describing the Critical Period as a stricter window and the Sensitive Period as a flexible timeframe. The other options either treat the Critical Period as flexible, claim they’re the same, or misstate when these windows end.