Hidden Type Screening¶

Design tests, menus, thresholds, trials, or evidence requirements that reveal hidden attributes before accepting risk or allocating scarce resources.

The Diagnostic Story¶

Symptom: The relevant quality, risk, or fit of candidates is not visible before commitment, yet commitments are being made. High-risk or low-quality candidates enter, the pool degrades, and review effort is wasted on obviously unsuitable cases while genuinely uncertain ones go under-examined. Decision-makers fall back on credentials, reputation, or presentation style because there is no validated channel for revealing the attribute that actually matters.

Pivot: Define the hidden attribute that must be revealed, design an elicitation or evidence channel calibrated to that attribute, validate that the screen predicts the attribute in the actual candidate population, and route all candidates through explicit rules — while maintaining fairness, privacy, appeal rights, and recalibration safeguards.

Resolution: Selection becomes more reliably tied to the attribute being sought: hidden-risk exposure falls, review capacity is concentrated where uncertainty is real, and adverse selection pressure is managed. The screen remains contestable and its predictive validity is monitored so it does not drift into a barrier that favors form over substance.

Reach for this when you hear…¶

[insurance underwriting] “Everyone says they're a careful driver, so we need a telematics trial before we price the policy.”

[clinical trial enrollment] “Self-reported adherence is useless here — we need a pill count at the screening visit.”

[hiring] “The resume tells me nothing about whether they can actually do the work, so I want to see a sample before we move to offers.”

Mechanisms / Implementations¶

Structured Applications: A structured application collects comparable evidence across candidates.
Diagnostic Tests: A diagnostic test reveals a hidden state such as disease, readiness, safety, or capability.
Work Samples and Auditions: A work sample or audition observes behavior close to the target task.
Structured Interviews: A structured interview uses common questions and rubrics to produce comparable evidence.
Background Checks and Reference Checks: These mechanisms gather external evidence about past conduct, claims, reliability, or risk.
Probationary Periods and Pilot Projects: These mechanisms reveal type through limited real-world exposure.
Self-Selection Menus: A self-selection menu offers options with different costs, constraints, benefits, or obligations so candidates sort themselves.
Underwriting Assessments: Underwriting is a domain mechanism for revealing hidden risk before accepting someone into credit, insurance, warranty, or shared-risk arrangements.
Credential Verification: Confirms with the issuing authority that a claimed qualification is genuine, current, and unrevoked — turning an unverified claim into standing evidence of a hidden competency or authorization.
Risk Scoring Models: A risk score combines evidence into a decision aid.

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Background Check: Retrieves external records of a candidate's documented past — conduct, credit, sanctions, history — to reveal a track record the candidate cannot see or won't disclose.
Challenge or Proof-of-Work: Demands a costly, hard-to-fake effort up front so that only the desired type finds it worth paying, letting the cost borne stand in as the signal.
Diagnostic Test: Applies a standardized measurement with known error rates to reveal a hidden state — disease, defect, readiness — and reads the result against the population's base rate.
Pilot Project: Deploys a candidate solution, vendor, or approach at bounded scale under real conditions to reveal how it actually performs before committing to full rollout.
Probationary Period: Admits a candidate under a defined trial window with a genuine decision point, so on-the-job conduct reveals fit before the commitment becomes permanent.
Reference Check: Elicits testimony from people who have worked with a candidate to reveal patterns of past behavior, reading each account against the referee's own bias and reach.
Risk Scoring Model: Combines many observed factors into a single calibrated score or tier that stands in for a hidden risk type and routes each candidate accordingly.
Self-Selection Menu: Offers a menu of options priced so that different hidden types find different options attractive, letting candidates reveal their type by which one they choose.
Structured Application: A standardized form that requires every candidate in a defined pool to supply the same decision-relevant evidence, making otherwise incomparable candidates comparable.
Structured Interview: Asks every candidate the same pre-set questions and scores answers against a fixed rubric, so live judgment becomes comparable and less prone to bias.
Underwriting Assessment: Gathers targeted evidence about a specific applicant's hidden risk, classifies them into a risk type, and routes to accept-at-a-price, refer, or decline.
Work Sample or Audition: Has the candidate perform a task close to the real work and judges the output directly, so demonstrated ability replaces claims about it.

Abstractions this archetype builds on — directly (a source ingredient) or as a related pattern. Links follow the typed catalog namespace.

Built directly on (3)

Adverse Selection: Hidden pre-contractual types make participation under uniform terms systematically more attractive to the types worst for the uninformed side, degrading or unraveling the pool.
Screening: Inducing self-revelation.
Set and Membership: Groups and categorizes elements.

Also references 10 related abstractions

Access Control: Restrict system access.
Equity: Context-sensitive fairness.
Incentive Compatibility: Align incentives.
Observability: Infer internal state externally.
Procedural Fairness (Due Process): Due process.
Selection Bias: Skewed sampling.
Signaling: Revealing hidden information.
Threshold: Safe vs harmful levels.
Type I & Type II Errors: False positive/negative.
Uncertainty: Incomplete knowledge.

Variants¶

Narrower or domain-specific specializations that share this archetype's core structure. Recognized variants are established; candidate variants are provisional.

Direct Evidence Screening · subtype · recognized

Reveal hidden attributes through documents, tests, records, references, or measurements presented before commitment.

Behavioral Trial Screening · temporal variant · recognized

Reveal hidden fit, reliability, capability, or risk through limited real or simulated participation before full commitment.

Self-Selection Menu Screening · subtype · promote to full archetype candidate

Offer differentiated options whose tradeoffs cause candidates with different hidden attributes to sort themselves.

Threshold Screening · implementation variant · recognized

Use a defined score, cutoff, criterion, or risk band to route candidates based on screened evidence.

Staged Screening Funnel · scale variant · recognized

Apply low-cost screens first, then more costly or intrusive screens only to ambiguous or promising candidates.

Hidden Type Screening¶

The Diagnostic Story¶

Reach for this when you hear…¶

Mechanisms / Implementations¶

Related Abstractions¶

Variants¶