Final answer:
Ethical treatment of human subjects, respect for privacy and anonymity, and maintaining objectivity and integrity in research are key ethical guidelines suggested by the American Psychological Association.
Step-by-step explanation:
A common ethical guideline suggested by the American Psychological Association pertains to the fair and ethical treatment of human subjects in research. This includes ensuring respect for privacy, anonymity when required, and maintaining objectivity and integrity in research.
It also entails the principles of autonomy, beneficence, nonmaleficence, and justice, to protect participants from any possible harm. The creation of these guidelines by the ASA reflects an evolved understanding of ethical responsibility in sociological research.