This document discusses ethical issues related to obtaining informed consent from human subjects, particularly second language learners, for research studies. It outlines key aspects of informed consent, including providing sufficient information about the study procedures, risks, and benefits. While full disclosure is ideal, withholding some information may be acceptable if it does not pose risks and all subjects will be debriefed. Researchers must ensure subjects understand the consent information, which should be conveyed clearly based on their abilities and backgrounds. Participation must also be voluntary without coercion.