ABPP Clinical Neuropsychology common mistakes
ABPP Clinical Neuropsychology · Understand the traps and how to avoid them.
When asked to localize a lesion, the candidate names a single structure (e.g., "hippocampus") without describing the vascular territory, laterality, or the network of connected structures, and without stating what the expected pattern of spared versus impaired function would be.
Studying neuroanatomy as isolated labeled structures rather than as systems. The exam tests brain-behavior relationships, so an isolated structure name cannot explain a symptom pattern or dissociate between competing localizations.
What to do instead
For every major syndrome, rehearse a three-part script: (1) affected structure(s) and vascular territory, (2) the functional network and disconnection effects, (3) the predicted dissociation (what is impaired and what is spared). Practice aloud on classic cases (e.g., PCA infarct, thalamic stroke, frontal disconnection).
On differential diagnosis items, the candidate anchors on the first plausible diagnosis and selects it, instead of explicitly ruling out the alternatives by naming the discriminating feature (e.g., the temporal profile, the error type, the pattern of domain sparing).
Anchoring and confirmation bias under time pressure. Candidates recognize a familiar prototype and stop reasoning before checking which features actually discriminate among the options.
What to do instead
Use a forced differential routine: list the top two or three candidates, then for each write one feature that would confirm it and one that would rule it out. Answer only after identifying the single discriminating feature the item is testing.
The candidate interprets a single impaired score as evidence of a deficit without checking base rates, premorbid estimate, confidence intervals, or whether the score is discrepant from the person's own expected level; conversely, they dismiss a real deficit because the score is "only" low average.
Treating cutoff scores as diagnostic categories rather than as probabilistic information. This reflects limited fluency with psychometrics, base rates, and the meaning of impairment in the context of an individual's estimated premorbid ability.
What to do instead
Before calling a score abnormal, state the base rate of that score in the normative population, the confidence interval, the premorbid estimate, and whether the pattern is internally consistent. Practice calculating and interpreting reliable change and discrepancy values.
When asked about a memory or language finding, the candidate describes the test result but cannot link it to the underlying cognitive process (encoding vs. consolidation vs. retrieval; lexical-semantic vs. phonological) or to the brain system that supports it.
Test-name memorization without process-level understanding. Items frequently ask what a pattern implies about mechanism, not merely whether the score was low.
What to do instead
For each major instrument, write a one-line statement of the cognitive process it isolates and the neural system it depends on. Use a recall-versus-recognition or cueing paradigm to practice distinguishing encoding, consolidation, and retrieval failures.
The candidate recommends an imaging or diagnostic study without justifying it by the clinical question, the expected base rate, and the likelihood that the result would change management, and without acknowledging its limitations (e.g., sensitivity, artifact, what it cannot detect).
Rote association of disorders with "the test for it" rather than reasoning about diagnostic yield and incremental value.
What to do instead
For every imaging or diagnostic method, rehearse: what question it answers, its sensitivity and specificity in the relevant population, its main artifacts and false-negative patterns, and one scenario in which it would not change management.
In intervention or rehabilitation items, the candidate endorses a strategy (e.g., repeated cognitive drills, errorless learning) without specifying the target, the evidence base, the transfer/generalization plan, and how response will be measured; or they recommend a compensation-only approach when restoration or environmental modification is indicated.
Familiarity with intervention labels without understanding mechanisms of generalization, dosing, and outcome measurement.
What to do instead
Structure each intervention answer as: target deficit, mechanism of change, evidence level, generalization strategy, and outcome measure. Know when errorless learning, external aids, and environmental modification are each preferred.
The candidate answers an ethics or forensic item by choosing the option that protects the referral source or seems most helpful, rather than the option dictated by the ethical standard (e.g., limits of confidentiality, dual roles, who the client is, release of raw data, competence boundaries).
Reasoning from clinical helpfulness or loyalty rather than from the applicable ethical code and legal framework, and failing to identify the client in forensic versus therapeutic contexts.
What to do instead
For every ethics item, first name the client and the role (treating vs. forensic), then cite the governing principle or standard, then select the option consistent with it. Memorize the rules on raw data, third-party observers, informed consent limits, and dual roles.
When interpreting a study or statistic, the candidate equates statistical significance with clinical importance, ignores effect size, confidence intervals, or base rates, or misreads a positive predictive value as if it were sensitivity.
Limited practice applying evidence-based reasoning to clinical questions; confusing the questions that p-values and diagnostic statistics each answer.
What to do instead
For any study, extract effect size, confidence interval, and clinical meaningfulness before significance. Practice converting sensitivity, specificity, and prevalence into predictive values so that the base-rate dependence becomes intuitive.
The candidate applies norms, tests, or interpretations without adjusting for culture, language, education, acculturation, or sensory/motor confounds, or uses an interpreter without following proper procedures; alternatively, they over-attribute findings to culture and under-diagnose genuine impairment.
Defaulting to the majority-culture normative frame and treating demographic corrections as optional, or swinging to the opposite error of dismissing all findings as cultural.
What to do instead
For every case, state the norm reference group, the demographic factors that affect the score, whether the test measures the intended construct in this person, and how an interpreter or acculturation measure was handled. Practice distinguishing cultural variance from true deficit using converging evidence.
In supervision or consultation items, the candidate gives advice or takes over the case rather than clarifying the referral question, defining roles and boundaries, and using a structured supervisory or consultative process; or they fail to address competence and due process in feedback.
Confusing being helpful with fulfilling the supervisory or consultant role, and lacking a framework for structuring these relationships.
What to do instead
Use a fixed sequence: clarify the referral question, define roles and confidentiality, assess the consultee's or supervisee's needs and competence, provide input within your scope, and plan follow-up. Rehearse feedback delivery that is specific, behavioral, and tied to due process.