The Importance of Informed Consent in Psychological Assessments

Before a psychologist administers a single test or asks a single question, there is one foundational step that sets the tone for everything that follows: informed consent. It is not a formality, and it is certainly not just a signature on a form. Informed consent is the process of making sure a client fully understands what they are agreeing to before a psychological assessment begins – why it is being done, how the data will be used, and what rights they hold throughout the process. When done well, it is one of the most powerful tools for building trust and ensuring ethical practice in psychological assessment.

What is informed consent in psychological assessment? 🔗

Informed consent is the process by which a psychologist ensures that a client understands the nature of an assessment and voluntarily agrees to participate – with full knowledge of what is involved. According to the American Psychological Association (APA) Ethical Principles of Psychologists and Code of Conduct, Standard 9.03 specifically governs informed consent in assessments, requiring psychologists to use clear, understandable language when explaining the purpose, procedures, and intended use of results to clients. This requirement extends to services delivered in person or through electronic means.

Importantly, informed consent is not a one-time event. The APA Practice Directorate describes it as an ongoing process that begins at the first contact and is revisited and updated throughout the professional relationship. This means a client’s understanding and agreement must be maintained, not just established at the start.

The core elements of informed consent 🔗

For consent to be truly “informed,” clients must be given specific, meaningful information before the assessment proceeds. These elements are not optional additions – they are the minimum required for ethical practice.

The purpose and nature of the assessment 🔗

Clients must be told why they are being assessed. This includes the referral question, the types of tests or procedures that will be used, and how long the process is likely to take. According to the Society for the Advancement of Psychotherapy, clients should be informed about the nature and anticipated course of the evaluation, including the psychologist’s credentials and relevant experience. Clients who understand the purpose of an assessment are better able to engage with it meaningfully.

How assessment data will be used 🔗

Clients have a right to know who will have access to their results and for what purpose. In many assessment contexts – educational placements, employment screening, forensic evaluations, or insurance claims – the results may be shared with third parties. As clinical ethics guidelines make clear, if limits on confidentiality exist – such as when all findings may be disclosed to a referring party – this must be explained from the outset. Clients deserve to know whether their data will inform decisions that directly affect their lives.

Voluntary participation and the right to withdraw 🔗

Consent must be freely given. True informed consent requires that agreement is given without coercion or undue influence. Clients should be explicitly told that participation is voluntary, and that they have the right to withdraw or refuse at any point, and that doing so will not result in penalty. This is especially important in contexts where a power imbalance exists – such as when a client has been court-ordered for assessment, or when an employee is assessed at an employer’s request. In those cases, it must still be made clear what the potential consequences of refusal are, so the client can make a genuinely informed choice.

Confidentiality and its limits 🔗

Confidentiality is a cornerstone of psychological assessment, but it is not absolute. Clients must be told both that their information will generally be kept private and that specific legal exceptions exist. According to the APA, informed consent documentation should include the legal exceptions to confidentiality – such as risk of harm to self or others, mandatory child abuse reporting, and court-ordered disclosure. Research published in psychiatric ethics literature highlights that clients may share sensitive information that could lead to involuntary hospitalization, gun prohibition, or other serious personal consequences if confidentiality is breached. Knowing these limits in advance allows clients to make considered decisions about what they disclose.

Why informed consent matters beyond compliance 🔗

It can be tempting to view informed consent as a bureaucratic obligation – a box to tick before the real work begins. But this misses what it actually does. Research on psychological assessment ethics underscores that the results of assessments can have meaningful, real-world consequences on a person’s life. A diagnosis, a placement decision, a custody recommendation – these outcomes follow people. Ensuring clients understand and agree to the process before it begins is not just ethical protocol; it is a direct expression of respect for their autonomy and dignity.

There is also a practical dimension. Clinical research supports the view that informed consent, when done well, can contribute to better outcomes by setting realistic expectations and encouraging genuine engagement. When clients feel they have been treated with transparency and respect from the start, they are more likely to participate openly and honestly – which directly improves the quality and accuracy of assessment data.

Special considerations in obtaining informed consent 🔗

When clients cannot fully consent 🔗

Standard consent processes do not apply uniformly to every client. Children and adolescents, individuals with cognitive impairments, those who are involuntarily committed, and court-ordered clients may all have reduced capacity or restricted ability to give voluntary informed consent. In these cases, psychologists must clarify who the actual client is, obtain consent from the appropriate party (such as a parent or guardian), and still obtain assent from the individual being assessed where possible. The goal remains the same: ensuring that every person involved understands what is happening and has a voice in the process.

Forensic and third-party assessment contexts 🔗

Forensic assessments present unique informed consent challenges. In these contexts, the evaluee is often not the psychologist’s client in the traditional sense – the referring agency or court may be. The APA notes that forensic services involve a distinct informed consent process, as they are not considered mental health treatment. Evaluees must still be informed of the purpose, the limits of confidentiality, and who will receive the results – even if they have little ability to decline participation.

Language, literacy, and accessibility 🔗

Consent is only meaningful if the client actually understands what they have agreed to. According to established guidelines, psychologists should use plain, straightforward language – free of clinical jargon – when explaining the assessment process. Forms should be readable and accessible, and psychologists should invite questions and confirm understanding before proceeding. For clients with language barriers or lower literacy, additional steps such as verbal explanation or translated materials may be necessary.

Informed consent as an ethical foundation 🔗

The shift in professional ethics over recent decades has moved firmly away from a paternalistic model – where the professional decides what is best – toward one grounded in client autonomy. As ethicists and professional codes now widely affirm, informed consent reflects this shift: it is a recognition that clients have the right to govern their own participation in psychological processes. As emphasized in clinical practice literature, obtaining informed consent is both a legal and ethical obligation embedded in the codes of psychological institutions internationally – from the APA to the European Federation of Psychologists’ Associations.

Beyond the legal requirement, it is also a matter of building trust. When a client walks into an assessment knowing what will happen, why it is happening, who will see the results, and what their rights are, the professional relationship starts on a foundation of honesty and mutual respect. That foundation matters – both for the integrity of the assessment and for the wellbeing of the person being assessed.

Documenting the consent process – not just the signed form but the conversation that took place – is equally important. Risk management guidance for psychologists consistently identifies thorough documentation of informed consent as one of the three core strategies for protecting both the client and the practitioner if ethical or legal questions later arise.

What do you think? If a client is being assessed at the request of a third party – such as an employer or a court – how should psychologists handle the tension between the client’s privacy interests and the third party’s need for information? And does the way informed consent is explained change how willing a client is to be honest during an assessment?

References

1. https://www.simplypsychology.org/informed-consent-in-psychology.html
2. https://www.apa.org/ethics/code
3. https://www.apaservices.org/practice/business/management/informed-consent
4. https://societyforpsychotherapy.org/informed-consent-in-clinical-practice-the-basics-and-beyond/
5. https://pmc.ncbi.nlm.nih.gov/articles/PMC6493245/
6. https://www.researchgate.net/publication/394958097_Operationalizing_Informed_Consent_in_Psychological_Assessment_Ethical_Issues_and_Considerations
7. https://pmc.ncbi.nlm.nih.gov/articles/PMC9568815/
8. https://kspope.com/consent/