Final answer:
The three biggest ethical issues in single-subject designs are harming the subjects, preserving confidentiality, and maintaining scientific integrity.
Step-by-step explanation:
The three biggest ethical issues in single-subject designs are:
- Harming the subjects: The first rule of sociological research is to not harm the subjects. Researchers must ensure that participation is voluntary and that the selection of research subjects is fair. They must also consider the potential risks to participants and take measures to minimize harm.
- Preserving confidentiality: Researchers must guarantee that confidentiality is preserved. Participants should feel confident that their personal information will not be disclosed without their consent.
- Maintaining scientific integrity: To ensure the reliability of the data, researchers must design the study properly. They must eliminate lurking variables, assign subjects randomly to different treatment groups, and have a control group that receives a placebo treatment.