Alfie participated in a research project offered by his psychology instructor. Before starting the experiment, the instructor told students they must participate in and complete the entire study, without leaving, in order to earn class credit. What BEST illustrates the ethical violation described here?

participants were not allowed to withdraw without penalty.

Explanation:

Ethical violation: The term ethical violence refers to the violence of the mentioned ethical values in APA i. e, American Psychological Association while conducting particular research.

A researcher should look for various ethical guidelines while researching informed consent, respect for confidentiality and anonymity, beneficence, respect for privacy, etc. Along with all this, it should be written that a participant can withdraw from research any time he or she wants to.

In the question above, the ethical violation is best described as participants were not allowed to withdraw without penalty.