A Capacity Assessment Is Not a Test of Agreement

October 13, 2026 | The Psychiatric Record | Clinical Commentary

A high-stakes refusal can be a sound reason to request a capacity assessment. The consequences of declining a treatment may warrant closer examination, even when agreement would not have prompted a consultation.

That is a reason to investigate, not a conclusion about capacity. A refusal may reflect difficulty making the decision, a difference in priorities, or a concern the team has not adequately addressed. Closer scrutiny still has to examine the patient's abilities in relation to the actual choice.

Agreement deserves scrutiny too. A patient can accept a recommendation without demonstrating that they understand it. A signature tells us that a form was signed. It does not, by itself, tell us what the person made of the choices.

This is a clinical ethics argument about adult treatment decisions. It does not set out the legal authority for involuntary treatment or the rules of any particular jurisdiction.

"Does this patient have capacity?" leaves out the decision being assessed.

Palmer and Harmell's 2016 review describes healthcare decision-making capacity as specific to the decision at hand. The framework they review considers understanding, appreciation, reasoning, and expression of a choice. Reasoning concerns the process used to compare consequences, rather than whether the clinician considers the eventual choice reasonable.

For a psychiatric consultation, this changes the starting point. Name the proposed intervention and the available alternatives. Establish what information has actually been discussed. Then examine the patient's abilities in relation to that decision.

A psychiatric diagnosis can be part of that assessment. Merely copying the diagnosis into the conclusion leaves the central question unanswered: what difficulty does this person demonstrate when considering this treatment? An account of the relevant ability is more informative than a label standing alone.

In the review's framework, understanding means comprehension rather than repeating the clinician's words. Appreciation asks whether the person can apply relevant information to their own situation. Reasoning concerns weighing options and consequences. Expression of a choice concerns communicating a decision. The review also discusses persistent inability to settle on a choice. An explained change of mind needs interpretation in context, rather than an automatic finding of incapacity.

The four-domain framework also has limits. Palmer and Harmell describe criticism that it gives insufficient attention to values, authenticity, and emotion. They recommend considering structured assessment in higher-risk contexts and interpreting instruments within a broader clinical evaluation. The framework organizes the inquiry; it does not turn four satisfactory-sounding answers into a complete assessment.

Those distinctions invite a more useful conversation than asking whether the patient agrees that treatment is necessary.

A refusal based on rejecting the diagnosis makes appreciation especially important. Palmer and Harmell illustrate this with mania: someone may understand the illness and treatment in general, yet illness-related loss of insight can prevent them from applying the risks of refusing treatment to themselves. The relevant difficulty is the failure to apply the information personally, not the diagnosis standing alone.

For an illustrative contrast, consider a person who questions a diagnosis after a burdensome treatment experience and can discuss how the alternatives and risks apply to them. That calls for a different assessment from the difficulty described in the review's mania example, even if both people refuse. These are illustrative comparisons, not patient cases or a diagnostic test.

The consultation should make the disputed point specific. What does the person believe is happening? How do they apply the proposed benefits and risks to their own circumstances? What supports their explanation, and what happens when the uncertainty is discussed? Those questions guide inquiry; disagreement with the clinician is not itself the finding.

The clinician might ask what the proposed treatment is intended to do, what the patient believes could happen with each option, and which consequences matter most to them. These are illustrative interview prompts, not a validated instrument or a complete capacity examination.

The responses may expose a specific misunderstanding. They may instead reveal that the patient gives a burden more weight than the clinician does. The assessment should describe the response and its relevance, rather than using agreement as a shortcut through that interpretation.

Before concluding that someone cannot understand a choice, examine how the choice was presented.

AMA Code Opinion 2.1.1 calls for assessing understanding and voluntary decision-making, discussing the diagnosis when known and the purpose, burdens, risks, and expected benefits of the options, including forgoing treatment, and documenting the consent conversation and decision. This is professional ethics guidance.

An explanation organized around the clinician's preferred option can leave the alternatives almost invisible. If the patient has only been told what the team wants done, a request to compare options may test information they were never given.

The consultation should make that gap explicit. What was explained? What remained unclear? What changed after clarification? The quality of the conversation belongs in the assessment, alongside the patient's responses.

Palmer and Harmell also emphasize efforts to support participation, including attention to transient interference such as fatigue or anxiety and reassessment as circumstances improve. They caution that assessment instruments do not replace the broader clinical evaluation.

Support and reassessment must fit the clinical time available. They should not be read as a reason to defer a decision that cannot wait. AMA Opinion 2.1.1 describes a specific emergency situation: an urgent decision, a patient unable to participate, and no available surrogate. That guidance is not a general exception for refusal. Applicable consent and legal requirements still need attention.

A useful capacity opinion connects a specific decision to observed abilities and difficulties. It can describe what information the patient understood, how they applied it, how they compared the alternatives, and what choice they communicated. Where the evidence is incomplete, the opinion should say what remains uncertain.

This makes room for a conclusion the requesting team may not have expected. It also makes room for identifying impairment even when the patient is cooperative and accepts the recommendation.

A finding of incapacity also requires a further decision process. AMA Opinion 2.1.2 calls for identifying an appropriate surrogate in keeping with applicable law and policy, continuing to involve the patient as far as possible, and using the patient's preferences and values to guide surrogate decisions. It recommends ethics or institutional consultation when no surrogate is available or disagreements remain unresolved. The finding does not make the team's preferred treatment the default decision or, by itself, establish authority to treat over objection.

The psychiatrist's task is not to produce the preferred answer for either side. It is to assess the abilities relevant to this decision and explain the basis for the conclusion.

The test of that work is whether the explanation still makes sense after the words "agreed" and "refused" are removed.

1. Palmer BW, Harmell AL. Assessment of Healthcare Decision-making Capacity. Archives of Clinical Neuropsychology. 2016;31(6):530-540. doi:10.1093/arclin/acw051. Historical review; full text hosted by NLM/PMC, reviewed in full in the public browser October 13, 2026. Clinical framework and limitations, not a jurisdiction-specific legal standard.
2. American Medical Association. Informed Consent. Code of Medical Ethics, Opinion 2.1.1. Official text captured and reviewed October 13, 2026.

3. American Medical Association. Decisions for Adult Patients Who Lack Capacity. Code of Medical Ethics, Opinion 2.1.2. Full official text captured and reviewed October 13, 2026. Ethics guidance; applicable law and policy remain relevant.

Source note: Clinical ethics commentary drawing on a 2016 review and AMA ethics guidance, reviewed October 13, 2026. This is not a report of a new study or a comprehensive review of current assessment instruments. Interview prompts and comparisons are illustrative, not a validated instrument or patient cases.

Educational Disclaimer: The Psychiatric Record provides general educational information for psychiatric and mental-health professionals. Content does not constitute medical, legal, regulatory, compliance, billing, or other professional advice; does not establish a standard of care; and is not a substitute for independent professional judgment. Appropriate assessment and treatment depend on the individual, setting, and current authoritative guidance. Patients should coordinate treatment decisions with their treating clinicians.