Final answer:
The APA did publish a set of ethical principles, but the exact content of the 'second set of principles' is not provided, making it unclear which principle listed was not part of this set. Ethical guidelines like those from the APA and ASA exist to ensure the protection of research participants, emphasizing respect for rights, dignity, and adherence to the principles of autonomy, beneficence, nonmaleficence, and justice.
Step-by-step explanation:
The American Psychological Association (APA) did publish a set of ethical principles, among which Principle E: Respect for People's Rights and Dignity is included. However, the second set of principles was not explicitly stated in the provided question, so to answer which of the options provided was not part of the second set would be speculative. Generally, APA's ethical guidelines focus on principles like beneficence and nonmaleficence, fidelity and responsibility, integrity, justice, and respect for people's rights and dignity.
It's important to consider that in research involving human subjects, ethical principles are needed to protect participants from harm. Studies that might be harmful can include those that put participants under psychological stress, expose them to danger, or compromise their privacy. The detailing of ethical guidelines by organizations such as the American Sociological Association (ASA) and the APA aims to safeguard human participants by promoting ethical research practices that respect the fundamental human rights to autonomy, beneficence, nonmaleficence, and justice.
Research in the field of psychology such as behaviorism, biopsychology, and the biopsychosocial model often directly involves human subjects, which underscores the necessity for stringent ethical guidelines to assure the welfare of participants.