In Humphreys' Tearoom Trade study, which ethical principle was violated by collecting data under false pretenses?

The ethical principle that was violated by collecting data under false pretenses in Humphreys' Tearoom Trade study is respect for persons. This principle emphasizes the importance of recognizing the autonomy of individuals and obtaining informed consent. By observing and gathering data on individuals engaging in sexual activities without their knowledge or consent, the study failed to uphold the dignity and rights of those participants.

Individuals have the right to make informed decisions about their participation in research, and collecting data without this informed consent disregards their personal autonomy and violates the ethical obligation researchers have to treat all subjects with respect. This principle is fundamental in ethical research practice, as it seeks to protect individuals from harm and exploitation.

While the other principles—beneficence, justice, and confidentiality—also play significant roles in ethical research, the specific act of collecting data under false pretenses most directly undermines the principle of respect for persons.