Informed consent (psychology)

Informed consent means a person voluntarily agrees to participate after receiving enough information to make a real decision. In psychological research, that information covers the study's general purpose, what participants will be asked to do, how long it will take, any foreseeable risks or discomforts, how their data will be handled and kept confidential, and the fact that they may decline to participate or stop at any point without penalty.

Consent must be given by someone with the capacity to give it. When participants are minors or cannot consent for themselves, a parent or legal guardian provides consent while the participant provides assent — an age-appropriate agreement to take part. Consent must also be free of coercion: a researcher who has authority over potential participants, such as an instructor recruiting students, has to be careful that agreement is genuinely voluntary.

Informed consent sits alongside several other ethical requirements. Deception is permitted only when a study cannot be conducted otherwise, when it does not conceal risks that would affect willingness to participate, and when participants are debriefed afterward with a full explanation of the true purpose. Confidentiality protects the data collected, and institutional review boards review proposed studies in advance to confirm that risks are justified and protections are adequate. Modern standards trace back to abuses documented in the twentieth century, which produced the Nuremberg Code, the Belmont Report, and current professional ethics codes.

Informed consent is regularly tested on AP Psychology in the research methods and ethics unit, where questions ask you to identify which ethical principle a described scenario violates. The same concept is examined from a clinical angle on the NCLEX, under advocacy, client rights, and the nurse's role in confirming that consent has been properly obtained.