Just-in-Time Coping Prompts for Reactive Digital Behavior in College Students (REACT)
2026년 8월 24일 업데이트: University of Florida
REACT: A Just-in-Time Adaptive Intervention to Reduce Reactive Digital Behavior in College Students
This study looks at the moments when college students feel a strong emotional swing, and how those moments relate to reacting online when upset, drinking alcohol, and eating in response to emotions.
Participants wear a wrist device and answer brief check-ins on their phone several times a day for about five weeks.
During part of that time, a study app sometimes sends a short coping message at moments when the wrist device and check-ins suggest emotions are shifting quickly.
Whether a message is sent at any given moment is decided at random, and the study compares what participants do in the short window afterward.
The study is a pilot designed to test whether the approach is feasible and to estimate how large its effects are.
연구 개요
상태
아직 모집하지 않음
상세 설명
REACT is a five-week micro-randomized trial in University of Florida students age 18 and older.
Participants complete a baseline battery, wear a Garmin Venu 3, and respond to five to six smartphone check-ins per day.
Week one is a no-prompt run-in that establishes each participant's own baseline distribution of momentary affective variability, indexed by the mean square of successive differences on consecutive affect ratings.
From week two through week five, the app evaluates up to six decision points per day.
A decision point is flagged when the participant's current variability exceeds their own 80th percentile threshold, computed within person rather than against a group average.
At each available decision point the app randomizes with probability 0.5 whether to deliver a brief coping message, and if so selects a message type from those eligible in that context.
Availability rules exclude sleep, stale device data, a 60-minute cooldown, a daily cap, and any safety override.
Proximal outcomes are drawn from the first check-in within two hours after the decision point.
Analysis uses weighted and centered least squares to estimate causal excursion effects, with pre-specified moderators.
연구 유형
중재적
등록 (추정된)
80
단계
- 해당 없음
연락처 및 위치
이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.
연구 연락처
- 이름: Yonghwan Chang, PhD
- 전화번호: 352-294-1664
- 이메일: yhchang@ufl.edu
연구 장소
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Florida
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Gainesville, Florida, 미국, 32611
- University of Florida
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연락하다:
- Yonghwan Chang, PhD
- 전화번호: 352-294-1664
- 이메일: yhchang@ufl.edu
-
수석 연구원:
- Yonghwan Chang, PhD
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참여기준
연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.
자격 기준
공부할 수 있는 나이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
예
설명
Inclusion Criteria:
- Currently enrolled University of Florida student
- Age 18 years or older
- Owns a smartphone used daily
- Willing to wear a wrist-worn device and complete brief check-ins several times daily for approximately five weeks
Exclusion Criteria:
- Varsity student-athlete governed by the university athletic association
- Unable to complete study procedures in English
공부 계획
이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 방지
- 할당: 무작위
- 중재 모델: 크로스오버 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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실험적: Coping prompt delivered
Decision points at which the randomization outcome is to deliver a brief cognitive-behavioral or acceptance-based coping message.
Message type is selected at random from those eligible in the participant's current context.
Every participant contributes decision points to this condition.
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A single short message of one to three sentences delivered to the participant's smartphone at a randomized decision point, taking roughly fifteen to thirty seconds to read.
Messages apply cognitive-behavioral techniques including thought records, perspective-taking, decatastrophizing, cost-benefit checks, implementation intentions, and behavioral redirection, or acceptance-based techniques including cognitive defusion, acceptance, values anchoring, urge surfing, and present-moment grounding.
Delivery is capped at four messages per day with a minimum sixty-minute interval and is confined to participant-set waking hours.
Messages may be dismissed without responding.
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활성 비교기: No coping prompt or active control message
Decision points at which the randomization outcome is not to deliver a coping message.
A brief neutral, non-directive acknowledgment message may be delivered as an active control so that receiving any message can be separated from receiving a coping message.
Every participant contributes decision points to this condition.
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A brief neutral acknowledgment message matched to the coping messages on delivery mechanism and approximate length, containing no coping technique or behavioral suggestion.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Momentary urge to post or reply reactively, score on a 7-point scale.
기간: Within 2 hours after each randomized decision point, across weeks 2 to 5.
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Self-reported urge to post or reply about something upsetting, rated 1 to 7 at the first check-in within two hours after a randomized decision point.
Higher scores indicate greater urge.
Analyzed as a causal excursion effect comparing decision points at which a coping message was delivered with those at which it was not.
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Within 2 hours after each randomized decision point, across weeks 2 to 5.
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Momentary urge to drink alcohol, score on a 7-point scale.
기간: Within 2 hours after each randomized decision point, across weeks 2 to 5.
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Self-reported current urge to drink alcohol, rated 1 to 7 at the first check-in within two hours after a randomized decision point.
Higher scores indicate greater urge.
Analyzed as a causal excursion effect.
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Within 2 hours after each randomized decision point, across weeks 2 to 5.
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Momentary emotional influence on eating, score on a 7-point scale.
기간: Within 2 hours after each randomized decision point, across weeks 2 to 5.
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Self-reported rating of how much emotions influenced eating since the previous check-in, rated 1 to 7 at the first check-in within two hours after a randomized decision point.
Analyzed as a causal excursion effect.
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Within 2 hours after each randomized decision point, across weeks 2 to 5.
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Proportion of delivered prompts receiving a response
기간: Through study completion, approximately 5 weeks per participant.
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Number of prompts receiving a rating response divided by number of prompts delivered.
Pre-registered benchmark is 60 percent.
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Through study completion, approximately 5 weeks per participant.
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Proportion of enrolled participants retained to study end.
기간: Through study completion, approximately 5 weeks per participant.
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Number of participants completing the study divided by number enrolled.
Pre-registered benchmark is 85 percent.
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Through study completion, approximately 5 weeks per participant.
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Momentary reactive online behavior since the previous check-in, self-reported occurrence
기간: Within 2 hours after each randomized decision point, across weeks 2 to 5.
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Self-reported occurrence of posting or replying while upset since the previous check-in, reported yes or no at the first check-in within two hours after a randomized decision point.
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Within 2 hours after each randomized decision point, across weeks 2 to 5.
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Number of standard drinks consumed since the previous check-in, self-reported count
기간: Within 2 hours after each randomized decision point, across weeks 2 to 5.
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Self-reported number of standard drinks consumed since the previous check-in.
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Within 2 hours after each randomized decision point, across weeks 2 to 5.
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Loss-of-control eating rating, score on a 7-point scale
기간: Within 2 hours after each randomized decision point, across weeks 2 to 5
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Self-reported sense of losing control while eating since the previous check-in, rated 1 to 7.
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Within 2 hours after each randomized decision point, across weeks 2 to 5
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Proportion of scheduled check-ins completed
기간: Through study completion, approximately 5 weeks per participant.
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Number of completed check-ins divided by number of scheduled check-ins.
Pre-registered feasibility benchmark is 75 percent.
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Through study completion, approximately 5 weeks per participant.
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Proportion of waking hours with valid wearable data
기간: Through study completion, approximately 5 weeks per participant.
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Hours of valid physiological data divided by estimated waking hours.
Pre-registered benchmark is 80 percent.
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Through study completion, approximately 5 weeks per participant.
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Prompt helpfulness rating, score on a 7-point scale
기간: Week 3 and end of study, approximately week 5.
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Participant rating of how helpful the coping prompts were, rated 1 to 7.
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Week 3 and end of study, approximately week 5.
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System Usability Scale total score.
기간: End of study, approximately week 5.
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System Usability Scale (Brooke, 1996) total score, range 0 to 100, higher scores indicating better usability.
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End of study, approximately week 5.
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공동 작업자 및 조사자
여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.
수사관
- 수석 연구원: Yonghwan Chang, PhD, University of Florida
연구 기록 날짜
이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.
연구 주요 날짜
연구 시작 (추정된)
2026년 9월 1일
기본 완료 (추정된)
2027년 5월 1일
연구 완료 (추정된)
2027년 8월 1일
연구 등록 날짜
최초 제출
2026년 8월 23일
QC 기준을 충족하는 최초 제출
2026년 8월 24일
처음 게시됨 (실제)
2026년 8월 27일
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
2026년 8월 27일
QC 기준을 충족하는 마지막 업데이트 제출
2026년 8월 24일
마지막으로 확인됨
2026년 8월 1일
추가 정보
이 연구와 관련된 용어
기타 연구 ID 번호
- IRB202600940
- 00135244 (기타 보조금/기금 번호: University of Florida Research Opportunity Seed Fund)
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
아니요
IPD 계획 설명
Individual participant data will not be shared outside the research team.
This is a pilot study collecting sensitive behavioral and biological data from a small identifiable campus population, and the informed consent does not provide for external sharing of individual-level data.
Aggregate results will be published.
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
아니
미국 FDA 규제 기기 제품 연구
아니
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .