In which part of the MoCA Language Arts test is the ability to use language appropriately in social contexts assessed?

The ability to use language appropriately in social contexts is primarily assessed through pragmatics. Pragmatics involves understanding the social rules and conventions that govern language use in different situations. This includes factors such as tone, context, and the relationships between speakers. It focuses on how language is used not just to convey meaning, but also to navigate social interactions effectively.

In contrast, vocabulary comprehension evaluates knowledge of word meanings and their appropriate use in isolation, while listening comprehension assesses the ability to understand spoken language but does not directly address social language use. Word fluency involves the ability to produce language quickly and can pertain to generating words, but again, it does not focus on the nuanced application of language in social situations. Thus, pragmatics is the correct answer as it specifically examines how individuals apply language in social contexts.