Which test evaluates individual language components in isolation?

• A. Discrete-point test
• B. Chain drill
• C. Visual aids
• D. Genre

Answer: (A)

Isolating individual language components means checking specific language points one at a time, such as a particular grammar form, a vocabulary item, or a pronunciation feature, without requiring you to produce long, connected speech. A discrete-point test is designed exactly for that: each item focuses on a single language point, and your answer shows whether you know that point independently of other skills. This makes it the best choice for diagnosing exact strengths and gaps in specific language areas.

The other options don’t fit this goal. A chain drill is a classroom activity that reinforces patterns and fluency through repetition, not a measurement of a single language point in isolation. Visual aids are teaching tools used to support learning and comprehension, not tests of isolated language knowledge. Genre refers to types of texts and their purposes, emphasizing discourse and stylistic features rather than testing discrete language elements.