docs(10_Wiki): 위키 전체 재구성 — Topic_* 폴더를 4개 카테고리로 통합 + 대규모 중복 제거

Topic_Agent/Topic_Blog/Topics/Topics_Biz/Topics_Meeting/Topics_Rag의 마크다운 지식 문서를
Topic_General/Topic_Programming/Topic_Graphic/Topic_Business 4개 카테고리로 재분류.

- 중복 제거: frontmatter의 status:duplicate/merged + duplicate_of/redirect_to 필드로
  자기 자신을 중복으로 선언한 리다이렉트 stub 1032개 제거, 완전 동일 내용 파일 472개 제거,
  동일 파일명·다른 내용 충돌 시 더 큰(완전한) 버전만 유지(162개 제거) — 총 1639개 중복 제거.
- 분류: 폴더 단위로 명확한 항목(AI_and_ML/Coding/Architecture 등 → Programming,
  Comfyui/Visual_Effects → Graphic, Topics_Biz/Topics_Meeting/사업 등 → Business,
  Poetic_Blog_Writing/창의성/Game_Design 등 → General)은 폴더 우선순위로,
  나머지 혼재 폴더(Topic_Agent/Topic_Blog/Topics 루트/Thinking & Reasoning/Other/UI_UX_Assets)는
  title/tags 키워드 스코어링으로 파일 단위 분류(불명확한 경우 General로 폴백).
  원본 폴더명은 "From_*" 서브폴더로 보존해 추적 가능성 유지.
- 최종 배치: Programming 2784 / General 1608 / Graphic 285 / Business 249 = 4926개 문서.
- 에이전트 운영 상태(.astra/.agent/.obsidian/sessions/memory/_company/docs/lessons/_shared/src)는
  지식 콘텐츠가 아니므로 재분류 대상에서 제외하고 원위치 유지.
- Topics/Topic_email(상위 보호 폴더 Topic_email과 파일명 100% 중복) 삭제 — 보호 폴더 자체는 미변경.
- 완전히 비게 된 Topic_Agent/Topic_Blog/Topics_Biz/Topics_Rag 폴더 제거.
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---
id: wiki-2026-0508-experience-sampling-method
title: Experience Sampling Method
category: 10_Wiki/Topics
status: verified
canonical_id: self
aliases: [ESM, EMA, Ecological Momentary Assessment, Diary Studies]
duplicate_of: none
source_trust_level: A
confidence_score: 0.9
verification_status: applied
tags: [research-methodology, psychology, ux-research, mobile]
raw_sources: []
last_reinforced: 2026-05-10
github_commit: pending
tech_stack:
language: typescript
framework: react-native
---
# Experience Sampling Method
## 매 한 줄
> **"매 retrospection bias 의 in-the-moment self-report 의 replace"**. Experience Sampling Method (ESM, Csikszentmihalyi & Larson 1987) 매 participants 의 day 의 multiple times 의 random/scheduled prompt, 매 current activity/affect/context 의 record. Mobile-era 매 EMA (Ecological Momentary Assessment) 의 generalize — 매 mental health, UX, productivity research 의 gold standard.
## 매 핵심
### 매 Why ESM
- **Retrospection bias**: 매 "지난주 어땠나" 매 peak-end bias, mood-congruent recall 의 distort.
- **Ecological validity**: 매 in-context 매 lab 의 not-replicate.
- **Within-subject variance**: 매 person × situation 의 interaction 의 capture.
### 매 Sampling schedules
- **Signal-contingent**: 매 random beep 매 day 매 6-8 prompts.
- **Interval-contingent**: 매 fixed times (9am/12pm/3pm/6pm).
- **Event-contingent**: 매 specific event (meal, exercise) 의 trigger.
- **Hybrid**: 매 baseline random + event triggers.
### 매 응용
1. Mood / affect tracking (depression, bipolar).
2. Pain studies (chronic pain).
3. UX product research — feature use in-context.
4. Flow state research (Csikszentmihalyi original).
5. LLM agent behavior tracking — analog 매 process.
## 💻 패턴
### Mobile prompt scheduler (React Native)
```typescript
import * as Notifications from 'expo-notifications';
interface ESMConfig {
startHour: number; endHour: number;
promptsPerDay: number;
minIntervalMinutes: number;
}
async function schedulePrompts(cfg: ESMConfig, days = 7) {
const slots = generateRandomSlots(cfg, days);
for (const slot of slots) {
await Notifications.scheduleNotificationAsync({
content: {
title: 'Quick check-in (30s)',
body: 'How are you feeling right now?',
data: { promptId: slot.id, scheduledFor: slot.time.toISOString() },
},
trigger: { date: slot.time },
});
}
}
function generateRandomSlots(cfg: ESMConfig, days: number) {
const slots = [];
for (let d = 0; d < days; d++) {
const dayStart = new Date();
dayStart.setDate(dayStart.getDate() + d);
const windowMs = (cfg.endHour - cfg.startHour) * 3600_000;
const minGap = cfg.minIntervalMinutes * 60_000;
const times: number[] = [];
while (times.length < cfg.promptsPerDay) {
const candidate = Math.random() * windowMs;
if (times.every(t => Math.abs(t - candidate) >= minGap)) {
times.push(candidate);
}
}
times.sort((a, b) => a - b).forEach((offset, i) => {
const t = new Date(dayStart);
t.setHours(cfg.startHour, 0, 0, 0);
t.setTime(t.getTime() + offset);
slots.push({ id: `${d}-${i}`, time: t });
});
}
return slots;
}
```
### Brief response form (PANAS-short, 30s budget)
```typescript
interface ESMResponse {
promptId: string;
respondedAt: Date;
latencyMs: number;
affect: {
valence: number; // -3..+3
arousal: number; // -3..+3
};
activity: string; // dropdown: work | social | rest | exercise | other
social: 'alone' | 'with_others';
freeText?: string;
}
```
### Compliance tracking
```typescript
function complianceMetrics(responses: ESMResponse[], scheduled: number) {
const completed = responses.length;
const onTime = responses.filter(r => r.latencyMs < 15 * 60_000).length;
const meanLatency = responses.reduce((s, r) => s + r.latencyMs, 0) / completed;
return {
completionRate: completed / scheduled, // target > 0.7
onTimeRate: onTime / scheduled, // target > 0.5
meanLatencyMin: meanLatency / 60_000,
};
}
```
### Multilevel analysis (within vs between)
```python
import statsmodels.formula.api as smf
# 매 each row 매 prompt response, 매 participant_id 매 grouping
model = smf.mixedlm(
'valence ~ activity + social + time_of_day',
data=df,
groups=df['participant_id'],
re_formula='~time_of_day',
).fit()
print(model.summary())
# 매 within-person variance (situation) 매 between-person (trait) 의 separate
```
### Sliding-window mood detection
```typescript
function detectMoodEpisode(responses: ESMResponse[], windowDays = 7, threshold = -1.5) {
const sorted = [...responses].sort((a, b) =>
a.respondedAt.getTime() - b.respondedAt.getTime());
const episodes = [];
for (let i = 0; i < sorted.length; i++) {
const start = sorted[i].respondedAt;
const end = new Date(start.getTime() + windowDays * 86400_000);
const window = sorted.filter(r =>
r.respondedAt >= start && r.respondedAt <= end);
if (window.length < 5) continue;
const meanV = window.reduce((s, r) => s + r.affect.valence, 0) / window.length;
if (meanV < threshold) episodes.push({ start, end, meanV, n: window.length });
}
return mergeOverlapping(episodes);
}
```
### Privacy: 매 on-device aggregation
```typescript
// 매 raw responses 매 device 의 stay, 매 weekly summary 만 의 server 의 send
async function uploadWeeklySummary(responses: ESMResponse[]) {
const summary = {
week: getCurrentWeek(),
n: responses.length,
valenceMean: mean(responses.map(r => r.affect.valence)),
valenceStd: std(responses.map(r => r.affect.valence)),
activityHistogram: histogram(responses.map(r => r.activity)),
};
await api.post('/esm/summary', summary);
}
```
## 매 결정 기준
| 상황 | Approach |
|---|---|
| Trait measurement (depression baseline) | 매 ESM unnecessary — 매 single questionnaire 매 fine |
| Within-day variation 의 question | 매 ESM signal-contingent |
| Specific event 매 rare | 매 event-contingent |
| Compliance fragile | 매 prompt count 의 reduce, 매 incentive |
| Privacy-sensitive (clinical) | 매 on-device aggregation 또는 federated |
**기본값**: 매 6-8 prompts/day, 매 14 days, 매 30s response — 매 compliance > 70% 의 target.
## 🔗 Graph
- 부모: [[Research-Methodology]]
- 변형: [[Ecological-Momentary-Assessment]]
- 응용: [[Flow_State|Flow-State]]
## 🤖 LLM 활용
**언제**: 매 in-the-moment subjective state 의 measure. Within-person variance 의 study. Retrospective bias 의 likely.
**언제 X**: 매 stable trait. 매 single-shot decision study. 매 intrusive sampling 매 acceptable 의 X.
## ❌ 안티패턴
- **Too many prompts**: 매 12+/day 매 fatigue → compliance crash.
- **Long forms**: 매 5min response 매 ecological 의 break.
- **Ignoring missing-not-at-random**: 매 prompts during depressive episode 매 skipped — 매 selection bias.
- **Cross-sectional analysis 의 hierarchical data**: 매 multilevel model 의 use, 매 OLS 의 std error 의 underestimate.
## 🧪 검증 / 중복
- Verified (Csikszentmihalyi & Larson 1987 JNMD; Shiffman et al. 2008 Ann Rev Clin Psych).
- 신뢰도 A.
## 🕓 Changelog
| 날짜 | 변경 |
|---|---|
| 2026-05-08 | Phase 1 |
| 2026-05-10 | Manual cleanup — ESM scheduler + analysis + privacy patterns |