{"schema_version":1,"research_id":"eoa_inverse_innovation_exp05_external_evaluation_20260803","source_assessment_id":"negative_space_design__rhetoric:P5:v0","cell_id":"negative_space_design__rhetoric","search_queries":["site:cdc.gov Clear Communication Index main message visual cues fact sheet placement supporting information","site:ftc.gov .com disclosures proximity claim disclosure clear conspicuous","whitespace reading comprehension study layout primary research","Gestalt proximity grouping user interface primary study whitespace","site:ftc.gov business guidance .com disclosures proximity claim disclosure 2013 pdf","site:w3.org WCAG info and relationships proximity semantic grouping reflow","site:designsystem.digital.gov card group related information spacing design tokens","Palmer Rock 1994 common region perceptual grouping primary paper","Chaparro Baker Shaikh Hull 2004 Reading Online Text with a Poor Layout whitespace study primary source","site:usabilitynews.org Reading Online Text with a Poor Layout performance worse Chaparro","proximity disclosure comprehension experiment advertising disclosure claim placement primary research","claim evidence mapping document layout reader study citation proximity"],"sources":[{"source_id":"S1","title":".com Disclosures: How to Make Effective Disclosures in Digital Advertising","publisher":"U.S. Federal Trade Commission","url":"https://www.ftc.gov/sites/default/files/attachments/press-releases/ftc-staff-revises-online-advertising-disclosure-guidelines/130312dotcomdisclosures.pdf","source_class":"GOVERNMENT_OR_REGULATOR","publication_date":"2013-03","accessed_at":"2026-08-03","claims_supported":["Proximity affects whether readers see a disclosure and relate it to the claim it qualifies.","Intervening text or graphics, scrolling, device size, and distraction can weaken a claim-disclosure relationship.","Actual effectiveness must be evaluated in the context of the complete communication; proximity alone does not establish compliance."]},{"source_id":"S2","title":"CDC Clear Communication Index: A Tool for Developing and Assessing CDC Public Communication Products—User Guide","publisher":"Centers for Disease Control and Prevention","url":"https://www.cdc.gov/ccindex/pdf/clear-communication-user-guide.pdf","source_class":"OFFICIAL_GUIDANCE","publication_date":"2020","accessed_at":"2026-08-03","claims_supported":["CDC treats spacing, alignment, headings, boxes, and other visual cues as meaningful communication devices.","The guide states that people expect nearby words and visuals to concern the same information.","CDC advises providing equivalent screen-reader cues rather than relying exclusively on visual presentation."]},{"source_id":"S3","title":"Using Clear Communication at NIOSH","publisher":"National Institute for Occupational Safety and Health, CDC","url":"https://www.cdc.gov/niosh/bulletin/2017/clear-communication.html","source_class":"OFFICIAL_ORGANIZATION_DATA","publication_date":"2017-05-25","accessed_at":"2026-08-03","claims_supported":["NIOSH is an identifiable institutional adopter of clear-communication review practices.","NIOSH reported using the CDC Clear Communication Index for public materials and training more than 400 employees.","NIOSH explicitly recommends chunking, headings, and placing visuals near related text."]},{"source_id":"S4","title":"Understanding Success Criterion 1.3.1: Info and Relationships","publisher":"World Wide Web Consortium, Web Accessibility Initiative","url":"https://www.w3.org/WAI/WCAG22/Understanding/info-and-relationships","source_class":"STANDARD","publication_date":"n.d. (WCAG 2.2 living document)","accessed_at":"2026-08-03","claims_supported":["Relationships conveyed visually through blank lines, grouping, headings, tables, or other presentation must be programmatically determinable or available in text.","A serial nonvisual presentation is a relevant check on whether relationships remain perceivable.","Whitespace-only evidentiary boundaries therefore require semantic or textual equivalents."]},{"source_id":"S5","title":"Understanding Success Criterion 1.4.10: Reflow","publisher":"World Wide Web Consortium, Web Accessibility Initiative","url":"https://www.w3.org/WAI/WCAG22/Understanding/reflow.html","source_class":"STANDARD","publication_date":"n.d. (WCAG 2.2 living document)","accessed_at":"2026-08-03","claims_supported":["Non-excepted horizontal-language content must reflow at a width equivalent to 320 CSS pixels without loss of information or functionality.","Responsive relocation is acceptable only when content remains accessible.","The proposed moat relationship must survive narrow viewports and zoom rather than force two-dimensional scrolling or information loss."]},{"source_id":"S6","title":"Card","publisher":"U.S. Web Design System, U.S. General Services Administration","url":"https://designsystem.digital.gov/components/card/","source_class":"OFFICIAL_PRODUCT_DOCUMENTATION","publication_date":"n.d. (living documentation)","accessed_at":"2026-08-03","claims_supported":["USWDS already provides modular groups of related content with configurable gaps and responsive grids.","USWDS prescribes list and heading semantics for assistive technology and tells implementers to test their own implementation.","USWDS identifies tables, continuous text, and other structures as preferable to cards for some information relationships."]},{"source_id":"S7","title":"Reading Online Text: A Comparison of Four White Space Layouts","publisher":"Usability News; institutional record hosted by Embry-Riddle Aeronautical University","url":"https://portfolio.erau.edu/en/publications/reading-online-text-a-comparison-of-four-white-space-layouts/","source_class":"PRIMARY_RESEARCH","publication_date":"2004-07","accessed_at":"2026-08-03","claims_supported":["A controlled comparison found that margins affected reading speed, comprehension, and satisfaction relative to no-margin text.","Different whitespace manipulations did not have uniform effects: leading affected preference but not measured reading performance.","General whitespace evidence does not directly establish accurate claim-evidence attribution in advocacy sheets."]},{"source_id":"S8","title":"Grouping by Proximity and Multistability in Dot Lattices: A Quantitative Gestalt Theory","publisher":"Association for Psychological Science","url":"https://www.psychologicalscience.org/journals/psychological-science/j.1467-9280.1995.tb00597.x/","source_class":"PRIMARY_RESEARCH","publication_date":"1995-07","accessed_at":"2026-08-03","claims_supported":["A seven-participant perceptual experiment quantitatively modeled grouping probability as a function of proximity.","Distance-based grouping has an empirical perceptual basis rather than being merely a stylistic convention.","The experiment used dot lattices, not claims, citations, qualifications, advocacy documents, accessibility modes, or responsive layouts."]}],"problem_evidence":{"support":"MODERATE","rationale":"The mechanism is visible and consequential in adjacent settings: FTC guidance says proximity affects whether qualifications are connected to triggering claims, while CDC says readers expect nearby material to concern the same information. Primary studies support proximity grouping and some comprehension effects of whitespace. However, no searched source measured the prevalence or error rate of cross-claim evidence misassignment in multi-claim advocacy sheets, so the exact stated problem remains an extrapolation.","source_ids":["S1","S2","S7","S8"]},"stakeholder_evidence":{"support":"STRONG","rationale":"NIOSH is an identifiable adopter with document authority: it reports organization-wide use of CDC's research-based communication index and substantial staff training. FTC is an identifiable authorizer for advertising disclosures and expressly requires attention to claim-disclosure proximity. These sources demonstrate institutional pull for clear relationship-preserving layouts, although neither expressly requests the named Evidence Moat system.","source_ids":["S1","S2","S3"]},"prior_art":{"proximity":"ESTABLISHED_PRACTICE","closest_analogues":[{"name":"FTC claim-disclosure proximity practice","similarity":"Places qualifying information near the claim it modifies and evaluates separation, distraction, scrolling, and device variation—the core claim/qualification association problem.","remaining_difference":"Evidence Moats repeat unmarked inter-unit gaps across multi-claim advocacy sheets and bundle evidence, citations, and warrants in addition to legally relevant disclosures.","source_ids":["S1"]},{"name":"CDC clear-communication chunking and proximity","similarity":"Uses sections, headings, spacing, and proximity to make related content perceptible and requires nonvisual communication support.","remaining_difference":"CDC guidance does not define a protected inter-unit gap invariant or assign the semantic assertion that content across a gap has no implied evidentiary relationship.","source_ids":["S2","S3"]},{"name":"USWDS cards with grid gaps and semantic list structure","similarity":"Implements repeated, responsive, semantically encoded groups of related content with configurable gaps and explicit table fallbacks.","remaining_difference":"Cards ordinarily add visible containers and are not specialized for claim-evidence-qualification-citation bundles; the proposal specifically tests unmarked separation.","source_ids":["S6"]},{"name":"WCAG programmatic preservation of visual relationships and reflow","similarity":"Requires relationships conveyed by spacing or grouping to survive assistive presentation and narrow viewports.","remaining_difference":"WCAG specifies an accessibility outcome, not a rhetoric-specific visual grammar or evidence-attribution performance threshold.","source_ids":["S4","S5"]},{"name":"Experimental proximity and whitespace literature","similarity":"Supports the general mechanisms that distance induces grouping and whitespace can affect comprehension, speed, and preference.","remaining_difference":"The located experiments did not test argumentative support attribution, competing claim units, citations, qualifications, screen readers, or bordered/table comparators.","source_ids":["S7","S8"]}],"distinctive_claim_remaining":"In a multi-claim advocacy sheet with identical wording and typography, a reusable unmarked spacing grammar in which the smallest inter-unit gap exceeds the largest intra-unit gap will increase correct claim-to-evidence, claim-to-qualification, and claim-to-citation matching over locally adjusted dense spacing; its remaining incremental value must also be tested against bordered cards and a labeled evidence matrix. This is contrastive and falsifiable, but it is an application-level refinement of established proximity, chunking, spacing-token, and semantic-grouping practices rather than evidence of a new general design mechanism.","confidence":"HIGH"},"implementation_evidence":{"support":"STRONG","rationale":"Spacing tokens, responsive grids, modular groups, lists, headings, and programmatic relationships are routine implementation capabilities documented by USWDS and W3C. Print templates can use the same spacing rule. Authority can be divided between the document owner, subject-matter owner, and accessibility reviewer without new legal powers. Safety depends on preserving qualifications and disclosures, supporting 320-CSS-pixel reflow, encoding semantics, and retaining bordered or tabular fallbacks. No source validates this exact workflow across real advocacy production, translation expansion, low-vision use, or screen readers.","source_ids":["S1","S2","S4","S5","S6"]},"scores":{"meaningful_impact":{"score":3,"rationale":"Correct evidence attribution could reduce misleading persuasive impressions and missed qualifications, but exact prevalence and realized impact in advocacy sheets are unmeasured.","source_ids":["S1","S2"]},"stakeholder_pull":{"score":4,"rationale":"Government communication organizations already train staff and govern materials around closely related clarity practices; the named system itself has no demonstrated request or budget.","source_ids":["S1","S3"]},"incremental_advantage":{"score":2,"rationale":"The proposal adds a useful rhetoric-specific invariant and test, but borders, headings, cards, citation markers, and tables may communicate the same relationships more reliably.","source_ids":["S1","S4","S6"]},"distinctiveness_plausibility":{"score":2,"rationale":"The claim-evidence application and protected unmarked moat rule are specific, but the operative mechanisms—proximity, chunking, responsive gaps, and semantic grouping—are established practice.","source_ids":["S2","S4","S6","S8"]},"technical_implementability":{"score":5,"rationale":"Existing layout, spacing-token, semantic-list, heading, and responsive-grid capabilities are sufficient; no novel software or data infrastructure is required.","source_ids":["S4","S5","S6"]},"adoption_authority_feasibility":{"score":4,"rationale":"A communication-program or document owner can authorize templates and testing, while subject-matter and accessibility reviewers retain appropriate vetoes. Regulated advertisements still require contextual legal review.","source_ids":["S1","S3"]},"evidence_readiness":{"score":3,"rationale":"Mechanistic and official guidance is substantial, but direct evidence for multi-claim attribution, comparator performance, and real-workflow prevalence is absent.","source_ids":["S1","S2","S7","S8"]},"safety_net_benefit":{"score":4,"rationale":"Semantic grouping, reflow, content preservation, and explicit bordered/table fallbacks can protect users who cannot perceive whitespace or who need dense comparison. These safeguards require implementation testing.","source_ids":["S4","S5","S6"]},"scalability":{"score":4,"rationale":"Reusable templates and tokens can scale across authors and formats, but translation, long qualifications, print pagination, and narrow screens can force fallback structures and ongoing governance.","source_ids":["S5","S6"]}},"score_confidence":"MODERATE","costs":{"first_evidence":{"band_2026_usd":"10K_TO_50K","scope":"Create four wording-identical fictional-sheet variants; run a counterbalanced study with 24–32 readers plus 4–6 assistive-technology walkthroughs; analyze matching accuracy, time, confidence, and interpretation; test print and 320-CSS-pixel layouts.","confidence":"MODERATE","assumptions":["Resource-equivalent estimate includes research design, document design, accessibility preparation, recruitment, incentives, facilitation, analysis, and reporting.","Participants are remotely recruited and no regulated or live campaign is exposed.","This is a feasibility and directional-effect study, not a powered estimate for every audience subgroup.","No direct 2026 vendor-price source was located; the band is labor-equivalent planning judgment."],"source_ids":["S4","S5","S6"]},"initial_deployment_startup":{"band_2026_usd":"10K_TO_50K","scope":"Build print, slide, web, and accessible-document templates; define spacing tokens, overflow rules, table/card fallbacks, claim-owner signoff, and reviewer training for one communication team.","confidence":"MODERATE","assumptions":["One existing design system and content-management workflow are adapted rather than replaced.","The organization already has subject-matter and accessibility reviewers.","Startup excludes wholesale remediation of legacy documents and legal review of individual claims."],"source_ids":["S1","S4","S5","S6"]},"operational_launch":{"band_2026_usd":"50K_TO_250K","scope":"Launch across one communication program producing approximately 25–50 recurring sheets, including template integration, migration of a bounded document set, training, accessibility QA, and early-production monitoring.","confidence":"LOW","assumptions":["Most content is preserved and re-laid out rather than rewritten.","High-density documents may be converted to labeled tables instead of forced into moat layouts.","Scope does not include enterprise-wide CMS replacement, multilingual redesign at national scale, or litigation support.","Actual volume, labor rates, and remediation burden are unknown."],"source_ids":["S1","S4","S5","S6"]},"annual_recurring":{"band_2026_usd":"10K_TO_50K","scope":"Template stewardship, accessibility regression checks, periodic reader sampling, exception review, training refreshes, and maintenance for one communication program.","confidence":"LOW","assumptions":["Approximately 0.1–0.3 FTE equivalent plus limited participant testing and design-system maintenance.","Subject-matter verification and ordinary content production are existing costs and excluded.","Major redesigns, extensive translation, and legal disputes are excluded."],"source_ids":["S1","S4","S5","S6"]}},"verified_pipeline_gates":{"externally_supported_problem":{"status":"YES","reason":"Official FTC and CDC sources independently support the underlying risk that proximity and intervening layout affect which qualifying or supporting material readers associate with a message; exact advocacy-sheet prevalence remains unknown.","source_ids":["S1","S2"]},"externally_credible_adopter_or_authorizer":{"status":"YES","reason":"NIOSH is a documented adopter of formal clear-communication review and FTC is a credible authorizer for claim-related advertising disclosures.","source_ids":["S1","S3"]},"distinct_testable_incremental_claim":{"status":"YES","reason":"The inter-gap-greater-than-intra-gap rule can be tested on claim-evidence, qualification, and citation matching against dense spacing, bordered cards, and a labeled matrix. Distinctiveness is narrow because adjacent practices are established.","source_ids":["S1","S4","S6","S8"]},"bounded_next_evidence_step":{"status":"YES","reason":"A counterbalanced fictional-document study with four comparators, predefined outcomes, assistive-technology walkthroughs, narrow-layout testing, and explicit falsifiers is bounded in participants, artifacts, time, and cost.","source_ids":["S4","S5","S6","S7"]},"no_unresolved_safety_or_authority_stop":{"status":"YES","reason":"A fictional pilot can preserve all claims and qualifications, avoid live persuasion, encode relationships programmatically, and revert to labeled or tabular units. Actual regulated use still requires content-specific review.","source_ids":["S1","S4","S5","S6"]},"credible_cost_scope_and_range":{"status":"YES","reason":"The four estimates are broad resource-equivalent planning bands tied to explicit participant, template, launch, and maintenance scopes. Confidence is limited because no direct 2026 price benchmark was among the eight sources.","source_ids":["S4","S5","S6"]}},"next_evidence_step":"Within six weeks, create four versions of two fictional six-claim sheets with identical words, source quality, qualifications, citations, type size, and shared context: (A) locally spaced dense baseline, (B) Evidence Moat spacing with the smallest inter-unit gap larger than the largest intra-unit gap, (C) explicitly bordered cards, and (D) a labeled claim-evidence matrix. Counterbalance versions and sheet topics across 24–32 consenting readers. Require claim-to-evidence, claim-to-qualification, and claim-to-source matching before measuring completion time, confidence, perceived grouping, context recall, and page/scroll omissions. Separately conduct 4–6 screen-reader or low-vision walkthroughs and verify print, zoom, and 320-CSS-pixel reflow. Advance only if the moat condition materially improves matching over baseline without worse context recall or omission and is no worse than the best explicit comparator by a prespecified practically acceptable margin. Falsify the incremental claim if matching does not improve, if borders or the matrix are materially better, if users infer independence from shared context, if qualifications or citations separate from claims, or if visual and programmatic groups diverge.","blocking_evidence":["No direct estimate of how often readers misassign evidence, qualifications, or citations in real multi-claim advocacy sheets.","No controlled comparison of the proposed moat grammar against dense spacing, bordered cards, and labeled matrices.","No empirically justified inter-unit/intra-unit gap ratio or minimum moat dimension.","No validation with screen-reader, low-vision, narrow-screen, translated, or long-qualification content.","No production-workflow evidence showing that claim owners, designers, and accessibility reviewers can maintain the boundary through revisions.","No evidence that unmarked gaps outperform explicit labels where claims share definitions, methods, or correlated evidence."],"research_disposition":"PARTNERED_RESEARCH_PROGRAM","world_novelty_boundary":"This assessment searched and opened only the eight listed direct sources. It establishes that the underlying proximity, chunking, spacing-token, semantic-grouping, and responsive-fallback mechanisms are established, while the rhetoric-specific Evidence Moat performance claim remains untested. World novelty, patentability, freedom to operate, market size, and realized impact were not measured; absence of an exact named match in this bounded search is not evidence of world novelty.","arm":"COMPLETE_PROPOSAL_PORTFOLIO","candidate_version":0,"controller_recommendation":{"action":"STOP_EMPIRICAL_RESEARCH_NEEDED","repairable":false,"material_progress_observed":true,"progress_targets":["Measure baseline prevalence and error types on a bounded sample of real or safely redacted multi-claim sheets.","Run the four-condition reader-matching study with prespecified practical-effect and noninferiority thresholds.","Validate semantic equivalence with screen-reader and low-vision participants and at 320-CSS-pixel reflow.","Identify the gap ratio or token rule that survives print, responsive, translation, and qualification-length variation.","Document claim-owner, accessibility-reviewer, and document-owner signoff and fallback triggers in a live production workflow."],"reason":"Bounded web research materially resolves mechanism plausibility, adopter credibility, implementation feasibility, accessibility obligations, and substantial prior-art overlap. It cannot establish the remaining incremental advantage, real error prevalence, cross-modal accessibility, or workflow durability; those questions require participant testing and production fieldwork. Under the evaluation rule, that requires an empirical-research stop rather than further web-only research."},"proposal_index":5}