What is a limitation of the social interactionist theory?

• A. It doesn't explain everything, has gaps
• B. Most current research focuses on this
• C. The learner's background information should be obtained
• D. Five steps of the assessment process

Answer: (A)

The main idea here is that every theory has limits, and the social interactionist view, while strong in showing how social input shapes language learning, does not account for everything. It explains how interaction, joint attention, and scaffolding from caregivers support language development, but it leaves gaps about the precise mechanisms by which grammar and rules emerge from social input. It also doesn’t fully address innate cognitive constraints or why certain language patterns appear so quickly or similarly across different cultures. Because of these unanswered questions, describing the theory as having gaps captures its limitation more accurately than statements about research focus, assessment practices, or procedural steps, which aren’t about the theory’s explanatory reach.