Dr. Ramanoff is conducting an experiment to investigate the effects of social media on stress levels among teenagers. The researcher is committed to upholding ethical standards throughout the study. During the experiment, participants are exposed to stress-inducing social media scenarios, and their stress levels are measured. Which ethical principle is the researcher most directly addressing by ensuring that participants are fully aware of the study's purpose, procedures, and potential risks before they agree to participate?
No harm
Informed consent
Confidentiality
Debriefing