Justine has the ability to speak and knows the language. However, for more than six months she has refused to speak to her teacher or any adult other than her parents. The best diagnosis for Justine is probably

Question

Quizplus · Accepted Answer

Selective mutism is characterized by a consistent failure to speak in specific social situations despite speaking in other situations, which matches Justine's behavior.

Justine Has the Ability to Speak and Knows the Language