Questions: Dr. Arslan is studying the effect of physiological stress on cognitive performance. To do this, she exposes her participants to mild temperature changes while they are working on brain teasers. She publishes her results but keeps the personal information of her participants private. This illustrates the principle of ethical research known as: freedom from coercion. debriefing. informed consent. confidentiality.

The answer is: confidentiality.

Explanation for each option:

1. Freedom from coercion: This principle ensures that participants are not forced or pressured into participating in a study. It is about voluntary participation without any undue influence or threats. In the given scenario, there is no mention of participants being coerced, so this option is not correct.

2. Debriefing: Debriefing involves explaining the purpose and procedures of the study to the participants after the experiment is completed. It ensures that participants are fully informed about the study they took part in. While debriefing is an important ethical principle, the scenario does not specifically mention this process, making this option incorrect.

3. Informed consent: This principle requires that participants are fully informed about the nature of the study, including any potential risks, before they agree to participate. Although informed consent is crucial in ethical research, the scenario does not provide details about whether participants were informed beforehand, so this option is not the best fit.

4. Confidentiality: This principle involves keeping the personal information of participants private and not disclosing it without their consent. In the scenario, Dr. Arslan publishes her results but keeps the personal information of her participants private, which directly illustrates the principle of confidentiality. Therefore, this is the correct answer.