diff --git a/components/ResultsTable.tsx b/components/ResultsTable.tsx
index e8e4d4d..87c8a8b 100644
--- a/components/ResultsTable.tsx
+++ b/components/ResultsTable.tsx
@@ -13,8 +13,8 @@ import {
   isPostRevealSurveyComplete,
   isPreRevealSurveyComplete,
 } from "@/utils/researchMetrics";
-import { getStoredSession, saveStoredSession } from "@/utils/session";
-import type { ComputedResearchMetrics, GameSummary, HiddenCostGameState, PostRevealSurveyAnswers, PreRevealSurveyAnswers, ResearchSession } from "@/types/research";
+import { assignCostVisibilityCondition, getStoredSession, saveStoredSession } from "@/utils/session";
+import type { ComputedResearchMetrics, CostVisibilityConditionName, GameSummary, HiddenCostGameState, PostRevealSurveyAnswers, PreRevealSurveyAnswers, ResearchSession } from "@/types/research";
 
 const fictionalPlayers = [
   { name: "Player 1", score: 164 },
@@ -52,10 +52,11 @@ export function ResultsTable({ mode = "visible" }: { mode?: ResultsMode }) {
       return;
     }
 
-    const nextSession: ResearchSession = {
+    const stagedSession: ResearchSession = {
       ...storedSession,
       currentStage: targetStage,
     };
+    const nextSession = mode === "visible" ? assignCostVisibilityCondition(stagedSession) : stagedSession;
 
     saveStoredSession(nextSession);
     setSession(nextSession);
@@ -90,6 +91,8 @@ export function ResultsTable({ mode = "visible" }: { mode?: ResultsMode }) {
         At this stage, you can see the score table. Please answer based only on the information currently available.
       </p>
 
+      {session?.costVisibilityCondition ? <CostVisibilityNote condition={session.costVisibilityCondition.condition} /> : null}
+
       <ResultsRankingTable players={sortedPlayers} />
 
       <div className="flex justify-end border-t border-slate-200 pt-6">
@@ -99,6 +102,23 @@ export function ResultsTable({ mode = "visible" }: { mode?: ResultsMode }) {
   );
 }
 
+function CostVisibilityNote({ condition }: { condition: CostVisibilityConditionName }) {
+  if (condition === "no-cost-info") {
+    return null;
+  }
+
+  const message =
+    condition === "partial-cost-hint"
+      ? "The score table may not show all conditions that shaped players' decisions. Some costs or constraints may differ across profiles."
+      : "Players may have faced different treatment-cost conditions during the game. The score table alone may not fully explain the final outcomes.";
+
+  return (
+    <p className="rounded-2xl border border-amber-200 bg-amber-50 p-5 leading-7 text-amber-950">
+      {message}
+    </p>
+  );
+}
+
 function IndividualResults({
   session,
   game,
@@ -117,6 +137,7 @@ function IndividualResults({
     postRevealSurvey,
     preRevealSurveyOriginal: session.preRevealSurveyOriginal,
     explanationFrameCondition: session.explanationFrameCondition,
+    costVisibilityCondition: session.costVisibilityCondition,
   });
   const interpretations = buildParticipantInterpretation(computedMetrics);
 
@@ -232,6 +253,9 @@ function MetricsGrid({ metrics }: { metrics: ComputedResearchMetrics }) {
     ["Remembered attribution matches original", metrics.rememberedPrimaryAttributionMatchesOriginal ? "Yes" : "No"],
     ["Memory confidence", metrics.memoryConfidence],
     ["Memory distortion magnitude", metrics.memoryDistortionMagnitude],
+    ["Cost visibility condition", metrics.costVisibilityCondition ?? "Not assigned"],
+    ["Had any cost hint", metrics.hadAnyCostHint ? "Yes" : "No"],
+    ["Had strong cost hint", metrics.hadStrongCostHint ? "Yes" : "No"],
   ] as const;
 
   return (
diff --git a/lib/adminSubmissions.ts b/lib/adminSubmissions.ts
index 0a3f840..c882cee 100644
--- a/lib/adminSubmissions.ts
+++ b/lib/adminSubmissions.ts
@@ -295,6 +295,7 @@ const CSV_COLUMNS: CsvColumn[] = [
   dbColumn("completed_game_rounds", "completedGameRounds"),
   payloadColumn("reveal_timing_condition", ["revealTimingCondition", "condition"]),
   payloadColumn("explanation_frame_condition", ["explanationFrameCondition", "condition"]),
+  payloadColumn("cost_visibility_condition", ["costVisibilityCondition", "condition"]),
   payloadColumn("stand_by_initial_interpretation", ["preRevealCommitment", "standByInitialInterpretation"]),
   payloadColumn("pre_reveal_commitment_text", ["preRevealCommitment", "explanationConfidenceText"]),
   payloadColumn("final_financial_score", ["gameSummary", "finalFinancialScore"]),
@@ -306,6 +307,9 @@ const CSV_COLUMNS: CsvColumn[] = [
   payloadColumn("skipped_treatment_choices", ["gameSummary", "skippedTreatmentChoices"]),
   payloadColumn("burden", ["computedMetrics", "burden"]),
   payloadColumn("care_avoidance", ["computedMetrics", "careAvoidance"]),
+  payloadColumn("metric_cost_visibility_condition", ["computedMetrics", "costVisibilityCondition"]),
+  payloadColumn("had_any_cost_hint", ["computedMetrics", "hadAnyCostHint"]),
+  payloadColumn("had_strong_cost_hint", ["computedMetrics", "hadStrongCostHint"]),
   payloadColumn("responsibility_shift", ["computedMetrics", "responsibilityShift"]),
   payloadColumn("constraint_recognition_shift", ["computedMetrics", "constraintRecognitionShift"]),
   payloadColumn("protest_legitimacy_shift", ["computedMetrics", "protestLegitimacyShift"]),
diff --git a/lib/researchExportSchema.ts b/lib/researchExportSchema.ts
index 2a144fe..ca2355e 100644
--- a/lib/researchExportSchema.ts
+++ b/lib/researchExportSchema.ts
@@ -12,6 +12,7 @@ const serverSubmissionStatusSchema = z.enum(["not_enabled", "not_submitted", "su
 const revisionAccessConditionSchema = z.enum(["revision-unlocked", "revision-locked"]);
 const revealTimingConditionNameSchema = z.enum(["immediate-reveal", "delayed-reveal"]);
 const explanationFrameConditionNameSchema = z.enum(["explain-to-self", "explain-to-other"]);
+const costVisibilityConditionNameSchema = z.enum(["no-cost-info", "partial-cost-hint", "full-cost-preview"]);
 
 export const revisionAccessSchema = z
   .object({
@@ -55,6 +56,13 @@ export const explanationFrameConditionSchema = z
   })
   .passthrough();
 
+export const costVisibilityConditionSchema = z
+  .object({
+    condition: costVisibilityConditionNameSchema,
+    assignedAt: isoDateStringSchema,
+  })
+  .passthrough();
+
 export const participantProfileSchema = z
   .object({
     ageGroup: z.string().min(1),
@@ -166,6 +174,9 @@ export const computedMetricsSchema = z
     memoryConfidence: likertSchema,
     memoryDistortionMagnitude: z.number().nonnegative(),
     explanationFrame: explanationFrameConditionNameSchema.nullable(),
+    costVisibilityCondition: costVisibilityConditionNameSchema.nullable(),
+    hadAnyCostHint: z.boolean(),
+    hadStrongCostHint: z.boolean(),
     attributionCategoryShift: z
       .object({
         pre: z.string().min(1),
@@ -213,6 +224,7 @@ export const researchExportSchema = z
     revealTimingCondition: revealTimingConditionSchema.optional(),
     preRevealCommitment: preRevealCommitmentSchema.optional(),
     explanationFrameCondition: explanationFrameConditionSchema.optional(),
+    costVisibilityCondition: costVisibilityConditionSchema.optional(),
     assignedProfile: assignedProfileSchema,
     gameSummary: gameSummarySchema,
     gameRounds: z.array(gameRoundSchema).min(1),
diff --git a/types/research.ts b/types/research.ts
index 870bcdc..8ef5b8d 100644
--- a/types/research.ts
+++ b/types/research.ts
@@ -155,6 +155,7 @@ export interface PreRevealRevision {
 
 export type RevealTimingConditionName = "immediate-reveal" | "delayed-reveal";
 export type ExplanationFrameConditionName = "explain-to-self" | "explain-to-other";
+export type CostVisibilityConditionName = "no-cost-info" | "partial-cost-hint" | "full-cost-preview";
 
 export interface RevealTimingCondition {
   condition: RevealTimingConditionName;
@@ -172,6 +173,11 @@ export interface ExplanationFrameCondition {
   assignedAt: string;
 }
 
+export interface CostVisibilityCondition {
+  condition: CostVisibilityConditionName;
+  assignedAt: string;
+}
+
 export interface ComputedResearchMetrics {
   responsibilityShift: number;
   constraintRecognitionShift: number;
@@ -204,6 +210,9 @@ export interface ComputedResearchMetrics {
   memoryConfidence: number;
   memoryDistortionMagnitude: number;
   explanationFrame: ExplanationFrameConditionName | null;
+  costVisibilityCondition: CostVisibilityConditionName | null;
+  hadAnyCostHint: boolean;
+  hadStrongCostHint: boolean;
 }
 
 export interface ResearchExportAssignedProfile {
@@ -233,6 +242,7 @@ export interface ResearchExport {
   revealTimingCondition?: RevealTimingCondition;
   preRevealCommitment?: PreRevealCommitment;
   explanationFrameCondition?: ExplanationFrameCondition;
+  costVisibilityCondition?: CostVisibilityCondition;
   assignedProfile: ResearchExportAssignedProfile;
   gameSummary: GameSummary;
   gameRounds: GameRoundData[];
@@ -272,6 +282,7 @@ export interface ResearchSession {
   revealTimingCondition?: RevealTimingCondition;
   preRevealCommitment?: PreRevealCommitment;
   explanationFrameCondition?: ExplanationFrameCondition;
+  costVisibilityCondition?: CostVisibilityCondition;
   postRevealSurvey?: PostRevealSurveyAnswers;
   preRevealSurveyStartedAt?: string;
   preRevealSurveyCompletedAt?: string;
diff --git a/utils/researchMetrics.ts b/utils/researchMetrics.ts
index c651f9d..42f65a8 100644
--- a/utils/researchMetrics.ts
+++ b/utils/researchMetrics.ts
@@ -13,7 +13,7 @@ import type {
 } from "@/types/research";
 
 export const RESEARCH_EXPORT_VERSION = "prototype-1.2";
-export const RESEARCH_SCHEMA_VERSION = "hidden-cost-game-research-schema-4";
+export const RESEARCH_SCHEMA_VERSION = "hidden-cost-game-research-schema-5";
 export const RESEARCH_CONSENT_VERSION = "pilot-consent-v1";
 
 const choiceCountKeys: Record<GameChoice, keyof TreatmentChoiceCounts> = {
@@ -107,6 +107,7 @@ export function calculateComputedResearchMetrics({
   revealTimingCondition,
   preRevealCommitment,
   explanationFrameCondition,
+  costVisibilityCondition,
 }: {
   game: HiddenCostGameState;
   preRevealSurvey: PreRevealSurveyAnswers;
@@ -118,6 +119,7 @@ export function calculateComputedResearchMetrics({
   revealTimingCondition?: ResearchSession["revealTimingCondition"];
   preRevealCommitment?: ResearchSession["preRevealCommitment"];
   explanationFrameCondition?: ResearchSession["explanationFrameCondition"];
+  costVisibilityCondition?: ResearchSession["costVisibilityCondition"];
 }): ComputedResearchMetrics {
   const summary = calculateGameSummary(game);
   const originalPreRevealSurvey = preRevealSurveyOriginal ?? preRevealSurvey;
@@ -141,6 +143,7 @@ export function calculateComputedResearchMetrics({
     informationSufficiencyRevisionDelta,
   ];
   const hasRevisionComparison = revisionDeltas.every((delta): delta is number => typeof delta === "number");
+  const costVisibilityConditionName = costVisibilityCondition?.condition ?? null;
 
   return {
     responsibilityShift: postRevealSurvey.revisedIndividualResponsibility - preRevealSurvey.individualResponsibility,
@@ -161,6 +164,9 @@ export function calculateComputedResearchMetrics({
     memoryConfidence: postRevealSurvey.rememberedConfidence,
     memoryDistortionMagnitude: roundMetric(memoryDistortionMagnitude),
     explanationFrame: explanationFrameCondition?.condition ?? null,
+    costVisibilityCondition: costVisibilityConditionName,
+    hadAnyCostHint: costVisibilityConditionName === "partial-cost-hint" || costVisibilityConditionName === "full-cost-preview",
+    hadStrongCostHint: costVisibilityConditionName === "full-cost-preview",
     attributionCategoryShift: {
       pre: preRevealSurvey.primaryAttribution,
       post: postRevealSurvey.revisedPrimaryAttribution,
@@ -259,6 +265,7 @@ export function buildResearchExport(session: ResearchSession, createdAt = new Da
     revealTimingCondition: session.revealTimingCondition,
     preRevealCommitment: session.preRevealCommitment,
     explanationFrameCondition: session.explanationFrameCondition,
+    costVisibilityCondition: session.costVisibilityCondition,
   });
 
   return {
@@ -280,6 +287,7 @@ export function buildResearchExport(session: ResearchSession, createdAt = new Da
     ...(session.revealTimingCondition ? { revealTimingCondition: session.revealTimingCondition } : {}),
     ...(session.preRevealCommitment ? { preRevealCommitment: session.preRevealCommitment } : {}),
     ...(session.explanationFrameCondition ? { explanationFrameCondition: session.explanationFrameCondition } : {}),
+    ...(session.costVisibilityCondition ? { costVisibilityCondition: session.costVisibilityCondition } : {}),
     assignedProfile: {
       displayedProfile: session.game.displayedProfile,
       hiddenProfile: session.game.hiddenProfile,
diff --git a/utils/session.ts b/utils/session.ts
index 3c2e763..920efc1 100644
--- a/utils/session.ts
+++ b/utils/session.ts
@@ -1,4 +1,4 @@
-import type { ExplanationFrameCondition, ResearchSession, RevealTimingCondition, RevisionAccess, StageId } from "@/types/research";
+import type { CostVisibilityCondition, ExplanationFrameCondition, ResearchSession, RevealTimingCondition, RevisionAccess, StageId } from "@/types/research";
 
 export const STORAGE_KEY = "hidden-cost-game-session";
 
@@ -73,6 +73,7 @@ function normalizeStoredSession(value: unknown, currentStage: StageId): Research
     revealTimingCondition: candidate.revealTimingCondition,
     preRevealCommitment: candidate.preRevealCommitment,
     explanationFrameCondition: candidate.explanationFrameCondition,
+    costVisibilityCondition: candidate.costVisibilityCondition,
     postRevealSurvey: candidate.postRevealSurvey,
     preRevealSurveyStartedAt: candidate.preRevealSurveyStartedAt,
     preRevealSurveyCompletedAt: candidate.preRevealSurveyCompletedAt,
@@ -128,6 +129,22 @@ export function assignRevealTimingCondition(session: ResearchSession): ResearchS
   };
 }
 
+export function assignCostVisibilityCondition(session: ResearchSession): ResearchSession {
+  if (session.costVisibilityCondition) {
+    return session;
+  }
+
+  const roll = Math.random();
+  const costVisibilityCondition: CostVisibilityCondition = {
+    condition: roll < 1 / 3 ? "no-cost-info" : roll < 2 / 3 ? "partial-cost-hint" : "full-cost-preview",
+    assignedAt: new Date().toISOString(),
+  };
+
+  return {
+    ...session,
+    costVisibilityCondition,
+  };
+}
 
 export function assignExplanationFrameCondition(session: ResearchSession): ResearchSession {
   if (session.explanationFrameCondition) {