ABPP Forensic Psychology common mistakes
ABPP Forensic Psychology · Understand the traps and how to avoid them.
Applying clinical diagnostic thresholds (e.g., DSM criteria counts) as if they answer the legal question, rather than translating findings into the specific legal standard asked (competence, insanity, risk, parenting capacity).
Training emphasizes diagnosis and symptom reduction; the clinician defaults to the familiar medical model and treats the referral question as implicit.
What to do instead
Before writing, restate the exact legal standard and jurisdiction's definition in one sentence, then map each finding explicitly to an element of that standard, labeling any element not addressed.
Offering opinions on ultimate legal issues (e.g., 'this defendant is incompetent' or 'he will reoffend') when the retaining party asked for clinical data or when the evaluator lacks the role to decide.
Pressure from attorneys and courts, plus a wish to be helpful, pulls evaluators past the boundary of their expertise and role.
What to do instead
Draft the opinion section as data-plus-inference (e.g., 'performance suggests deficits in X relevant to prong Y'), reserve legal conclusions for the court, and state role limits in the report's opening paragraph.
Relying on a single risk instrument score to estimate violence risk without integrating base rates, protective factors, and dynamic/contextual variables.
Actuarial scores feel objective and defensible; candidates confuse a number with a risk formulation.
What to do instead
Report the instrument's score and its validated meaning, then build an structured professional judgment formulation covering historical, clinical, and risk-management factors, and state confidence limits.
Accepting the referral question and fee arrangement without clarifying who the client is, who will see the report, and whether the evaluee has been informed of limits to confidentiality.
Forensic referrals arrive through attorneys who frame the task casually; candidates carry over therapeutic assumptions about confidentiality.
What to do instead
At intake, document in writing the retaining party, purpose, anticipated recipients, absence of doctor-patient confidentiality, and the notification script read to the evaluee, with a signed acknowledgment.
Writing reports that mix raw test scores, clinical speculation, and legal conclusions in undifferentiated prose, so the reader cannot tell data from inference.
Clinical report templates reward narrative fluency; forensic consumers need traceable reasoning and candidates reuse familiar formats.
What to do instead
Use fixed headings (referral question, sources, data, interpretation, opinions tied to standard, limits), keep a separate data appendix, and tag each opinion with the evidence supporting it.
Failing to recognize and manage dual or multiple relationships (e.g., treating a patient then evaluating them for court, or evaluating both parents and the child) without disclosure or role clarification.
Small communities and longstanding clinical caseloads make role overlap feel unavoidable, and candidates underestimate the objectivity threat.
What to do instead
Screen for prior contacts at intake, decline or refer when the prior role compromises objectivity, and when overlap is unavoidable, document disclosure, obtain informed consent, and describe the conflict's management in the report.
Testifying beyond the data under cross-examination, answering hypotheticals as if they were findings, or conceding certainty the data do not support.
Adversarial questioning rewards confident answers and candidates fear appearing evasive or incompetent.
What to do instead
Practice the phrase 'that is beyond what my data support,' distinguish hypothetical from case-specific answers explicitly, and prepare a one-page data summary to anchor testimony.
Designing or endorsing treatment plans for justice-involved clients that ignore criminogenic need, mandated reporting, and the coercive context (e.g., pure supportive therapy for a high-risk offender).
Clinicians apply general psychotherapy training and underestimate how legal coercion changes engagement, consent, and outcome targets.
What to do instead
Base plans on risk-need-responsivity principles, target criminogenic factors, document the limits of confidentiality and reporting duties up front, and measure progress with risk-relevant indicators.
Ignoring or misapplying the relevant legal authority (e.g., using a competence standard from another jurisdiction, or citing a case for a proposition it does not hold).
Candidates rely on remembered landmark cases without checking how the governing jurisdiction has refined or rejected them.
What to do instead
Maintain a jurisdiction-specific cheat sheet of controlling standards and verify every cited authority against the primary source before it enters a report or testimony.
Treating informed consent as a signature rather than a process, especially with evaluees of limited literacy, cognitive impairment, or coercive circumstances.
Form-driven practice and time pressure reduce consent to paperwork.
What to do instead
Use teach-back to confirm comprehension, document the evaluee's questions and responses, and note any limits on voluntariness in the report.