Which instrument is designed to measure all four language domains in K-12?

• A. LAS Language Assessment Scale
• B. BSM Bilingual Syntax Measure
• C. IPT Idea Proficiency Test
• D. Open syllable

Answer: (A)

Measuring language across all four domains—listening, speaking, reading, and writing—with one tool is what the Language Assessment Scale (LAS) is designed to do in K‑12 settings. It provides a comprehensive view of a student’s language abilities across modalities, with norms and guidance suitable for school‑aged English learners, helping teachers track growth over time and plan instruction accordingly.

The other options focus on narrower areas or aren’t established four‑domain K‑12 language assessments: the Bilingual Syntax Measure targets syntax rather than all four domains; the Idea Proficiency Test isn’t a standard, four‑domain tool for K‑12 language assessment; and Open syllable isn’t an assessment instrument.