In Krashen's Monitor Model, which statement best describes the role of the monitor?

• A. It acts as an editor of language output and is most effective in certain contexts
• B. It automatically corrects all errors in spontaneous speech
• C. It is the primary source of language acquisition
• D. It has no impact on language development

Answer: (A)

The Monitor in Krashen's model functions as an editor of the learner’s language output. It relies on learned rules to check form and make corrections, but it’s most effective when the learner has time to think about accuracy—such as in editing, writing, or deliberate form-focused practice, and often in low-anxiety contexts.

In real-time speech, the monitor doesn’t automatically fix every error; it requires time and attention to form, and over-reliance on it can even reduce fluency. Also, the monitor isn’t the source of language development itself—that comes from meaningful, meaningful communication and acquisition rather than conscious editing. So describing it as an editor of output used in specific, time-for-form situations best captures its role.