Ethical Guidelines in Psychological Research

When conducting psychological research, ethical guidelines are critical for ensuring the well-being of participants and the integrity of the research process. Many of these guidelines have been formalized by organizations such as the American Psychological Association (APA). Consider the following statements regarding ethical guidelines in psychological research:

1. Participants must be informed about the nature of the research beforehand.

2. Debriefing after the study must always occur, regardless of whether deception was involved.

3. Informed consent can be waived in all types of research if the benefits outweigh the risks.

4. Confidentiality must be maintained, but researchers can disclose participant information if it is for their welfare.

5. Researchers must always prioritize the rights of the participant over their scientific interests.

Which of the statements above adheres fully to established ethical guidelines in psychological research?