Which of the following best defines "informed consent" in psychology?

The correct answer is grounded in the fundamental principle of informed consent, which is central to ethical practice in psychology. Informed consent involves a process whereby clients are thoroughly informed about the nature, risks, benefits, and alternatives of the proposed treatment. This understanding enables clients to make an educated and voluntary decision regarding their participation in therapy or any psychological services.

This choice encompasses not only the client's agreement but emphasizes the necessity of the client's comprehension of treatment terms. It reflects the ethical obligation of practitioners to ensure that clients are sufficiently equipped to make informed choices about their care.

The other options either simplify the concept or do not encompass its full scope. For instance, merely obtaining verbal consent during the first session does not account for the need for comprehensive understanding or ongoing dialogue about treatment. Similarly, written consent for financial transactions and general permissions do not capture the essence of informed consent related to therapeutic interventions, which requires a nuanced communication of treatment implications and supportive client engagement.