Psychological Testing, PARADISE-2, and Behavior-Based Evidence

Psychological and cognitive testing can be valuable in capacity litigation, but it rarely answers the legal question by itself. A test score may suggest impairment, preserved function, inconsistency, or a need for deeper inquiry. It does not automatically prove whether a person had testamentary capacity, contractual capacity, donative capacity, capacity to consent, or vulnerability to undue influence at the relevant time.

The limitations are familiar to sophisticated litigators. Testing may occur months or years away from the operative date. It may be affected by sleep, pain, anxiety, depression, medications, intoxication, delirium, sensory impairment, cultural factors, language, education, effort, or testing conditions. Brief screening instruments may miss executive dysfunction, impaired appreciation, poor judgment, susceptibility to manipulation, or inability to understand a complex transaction.

The governing legal test varies by jurisdiction and the decision at issue, but the analysis is functional. Depending on that test, relevant questions may include whether the person could understand the information, appreciate consequences, reason about alternatives, and communicate a choice—and whether the surrounding circumstances allowed the choice to be voluntary. A person may perform reasonably well on a structured task but fail in an unstructured financial or interpersonal setting. Conversely, a person may have a low score yet still understand a simple, well-explained decision that is consistent with long-standing intentions.

Behavior-based evidence is therefore often central to the analysis. What did the person do, say, initiate, avoid, repeat, misunderstand, forget, conceal, accept, or fail to appreciate? Did the person ask appropriate questions? Recognize beneficiaries? Understand asset changes? Appreciate tax, fiduciary, business, or family consequences? Detect contradictions? Resist pressure? Seek independent advice? Maintain consistency over time?

What PARADISE-2 Organizes

PARADISE-2, developed by Bennett Blum, MD, is a qualitative, behavior-based method for evaluating mental capacity in relation to a particular decision or time period. It organizes evidence across six broad domains—cognition, emotion, language, interpersonal relationships, consistency with prior acts and beliefs, and mitigating factors—and reviews 16 behaviors and functions: past behavior; pertinent parties; abstract concepts; alertness; ability to remember information; responsibilities; alternatives considered; attention; delusions; decision-making abilities; illness; impact; strategic thinking; significance; emotional factors; and ability to express desires.

For each behavior or function, the available information is classified as showing clear impairment, no impairment, conflicting information, or insufficient information. Information should be drawn, when possible, from multiple independent sources. PARADISE-2 does not replace the governing legal standard or clinical judgment; it helps describe functioning behaviorally and identify where further evidence or evaluation is needed.

For litigators, the practical benefit is discovery discipline. A behavior-based approach helps identify which witnesses matter and why. Treating physicians may address diagnosis. Estate planners may address execution. Bankers may address transaction behavior. Caregivers may address daily function. Family members may address consistency, isolation, and relationship change. Business partners may address judgment, risk appreciation, and negotiation behavior. No one witness usually sees the whole picture.

Testing remains important when interpreted in context. Formal neuropsychological evaluation may clarify memory, language, attention, processing speed, executive function, and reasoning. Psychiatric evaluation may clarify mood, psychosis, anxiety, grief, delusions, personality factors, or medication effects. But the expert must connect test findings to the legal act, not merely recite them.

Attorneys should be alert to experts who overstate either side. A test score does not end the inquiry. A polished social presentation does not end the inquiry. A diagnosis does not end the inquiry. A useful opinion explains how testing, records, behavior, relationship dynamics, and the transaction fit together.

In high-stakes capacity disputes, the most persuasive analysis usually combines clinical evidence with behavior-based reconstruction. It identifies what the person understood, what the person failed to appreciate, how the person actually behaved, and whether the disputed act reflected independent decision-making under the circumstances.

Cross-examination of a testing-based opinion should focus on fit. What legal capacity was being evaluated? Was the test designed for that capacity? How close was the testing to the operative date? Did the examiner know the transaction's complexity, the alleged influencer's role, and the person's access to independent advice? Testing is strongest when it is integrated with behavior; it is weakest when it is treated as a proxy for the legal decision.

Attorneys evaluating testing or behavior-based evidence in a disputed decision may also review Dr. Blum’s mental-capacity consultation and expert-witness services.

Need Case-Specific Analysis?

Early review can help determine whether testing, clinical evidence, behavior, and the demands of the disputed decision can support a reliable retrospective analysis.

Attorneys may submit a brief, non-confidential inquiry. Do not send records, privileged communications, protected information, or detailed case strategy before conflicts are cleared and an engagement is confirmed in writing.

This article is educational and is not legal or medical advice. Governing standards, burdens of proof, and evidentiary rules vary by jurisdiction, claim, and type of proceeding. Counsel should identify the controlling law; the court determines the ultimate legal issues.