The best predictor of whether someone will achieve fluency in a second language is
A)motivation.
B)IQ.
C)age of acquisition.
D)the simplicity of the second language's structure.

Question

Quizplus · Accepted Answer

Age of acquisition has been found to be a strong predictor of second language proficiency, with younger learners generally achieving higher levels of fluency. This may be due to neurological factors, such as the plasticity of the brain at a young age, or social factors, such as increased exposure to the language and less inhibitions about making mistakes. Motivation can also play a role, but it is not as consistent or strong a predictor as age of acquisition. IQ and simplicity of language structure have not been found to have a significant impact on second language proficiency.

The Best Predictor of Whether Someone Will Achieve Fluency in a Second