One way to test the hypothesis that people are biologically adapted to learn best during a critical period is to ____.
A)compare the vocabularies of children and adults
B)determine whether people learn a second language better than a first language
C)determine whether people learn a second language if they start at various ages
D)compare the grammar use of children and adults

Question

One way to test the hypothesis that people are biologically adapted to learn best during a critical period is to ____.​
A)compare the vocabularies of children and adults 
B)​determine whether people learn a second language better than a first language
C)​determine whether people learn a second language if they start at various ages
D)compare the grammar use of children and adults

Quizplus · Accepted Answer

Determining whether people learn a second language if they start at various ages would be the best way to test the hypothesis that people are biologically adapted to learn best during a critical period. This would involve examining whether there is a certain age range during which people are more likely to develop fluency and proficiency in a second language, as opposed to starting to learn the language later in life. Comparing vocabularies or grammar use of children and adults would not directly address this hypothesis, while determining whether people learn a second language better than a first language is a different question altogether.

One Way to Test the Hypothesis That People Are Biologically