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Just-in-Time Coping Prompts for Reactive Digital Behavior in College Students (REACT)

24 sierpnia 2026 zaktualizowane przez: 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.

Przegląd badań

Status

Jeszcze nie rekrutacja

Warunki

Interwencja / Leczenie

Szczegółowy opis

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.

Typ studiów

Interwencyjne

Zapisy (Szacowany)

80

Faza

  • Nie dotyczy

Kontakty i lokalizacje

Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.

Kontakt w sprawie studiów

  • Nazwa: Yonghwan Chang, PhD
  • Numer telefonu: 352-294-1664
  • E-mail: yhchang@ufl.edu

Lokalizacje studiów

  • Stany Zjednoczone
    • Florida
      • Gainesville, Florida, Stany Zjednoczone, 32611
        • University of Florida
        • Kontakt:
        • Główny śledczy:
          • Yonghwan Chang, PhD

Kryteria uczestnictwa

Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.

Kryteria kwalifikacji

Wiek uprawniający do nauki

  • Dorosły
  • Starszy dorosły

Akceptuje zdrowych ochotników

Tak

Opis

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

Plan studiów

Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.

Jak projektuje się badanie?

Szczegóły projektu

  • Główny cel: Zapobieganie
  • Przydział: Randomizowane
  • Model interwencyjny: Zadanie krzyżowe
  • Maskowanie: Brak (otwarta etykieta)

Broń i interwencje

Grupa uczestników / Arm
Interwencja / Leczenie
Eksperymentalny: 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.
Behawioralne: Momentary coping prompt
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.
Aktywny komparator: 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.
Behawioralne: Active control message
A brief neutral acknowledgment message matched to the coping messages on delivery mechanism and approximate length, containing no coping technique or behavioral suggestion.

Co mierzy badanie?

Podstawowe miary wyniku

Miara wyniku
Opis środka
Ramy czasowe
Momentary urge to post or reply reactively, score on a 7-point scale.
Ramy czasowe: Within 2 hours after each randomized decision point, across weeks 2 to 5.
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.
Within 2 hours after each randomized decision point, across weeks 2 to 5.
Momentary urge to drink alcohol, score on a 7-point scale.
Ramy czasowe: Within 2 hours after each randomized decision point, across weeks 2 to 5.
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.
Within 2 hours after each randomized decision point, across weeks 2 to 5.
Momentary emotional influence on eating, score on a 7-point scale.
Ramy czasowe: Within 2 hours after each randomized decision point, across weeks 2 to 5.
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.
Within 2 hours after each randomized decision point, across weeks 2 to 5.

Miary wyników drugorzędnych

Miara wyniku
Opis środka
Ramy czasowe
Proportion of delivered prompts receiving a response
Ramy czasowe: Through study completion, approximately 5 weeks per participant.
Number of prompts receiving a rating response divided by number of prompts delivered. Pre-registered benchmark is 60 percent.
Through study completion, approximately 5 weeks per participant.
Proportion of enrolled participants retained to study end.
Ramy czasowe: Through study completion, approximately 5 weeks per participant.
Number of participants completing the study divided by number enrolled. Pre-registered benchmark is 85 percent.
Through study completion, approximately 5 weeks per participant.
Momentary reactive online behavior since the previous check-in, self-reported occurrence
Ramy czasowe: Within 2 hours after each randomized decision point, across weeks 2 to 5.
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.
Within 2 hours after each randomized decision point, across weeks 2 to 5.
Number of standard drinks consumed since the previous check-in, self-reported count
Ramy czasowe: Within 2 hours after each randomized decision point, across weeks 2 to 5.
Self-reported number of standard drinks consumed since the previous check-in.
Within 2 hours after each randomized decision point, across weeks 2 to 5.
Loss-of-control eating rating, score on a 7-point scale
Ramy czasowe: Within 2 hours after each randomized decision point, across weeks 2 to 5
Self-reported sense of losing control while eating since the previous check-in, rated 1 to 7.
Within 2 hours after each randomized decision point, across weeks 2 to 5
Proportion of scheduled check-ins completed
Ramy czasowe: Through study completion, approximately 5 weeks per participant.
Number of completed check-ins divided by number of scheduled check-ins. Pre-registered feasibility benchmark is 75 percent.
Through study completion, approximately 5 weeks per participant.
Proportion of waking hours with valid wearable data
Ramy czasowe: Through study completion, approximately 5 weeks per participant.
Hours of valid physiological data divided by estimated waking hours. Pre-registered benchmark is 80 percent.
Through study completion, approximately 5 weeks per participant.
Prompt helpfulness rating, score on a 7-point scale
Ramy czasowe: Week 3 and end of study, approximately week 5.
Participant rating of how helpful the coping prompts were, rated 1 to 7.
Week 3 and end of study, approximately week 5.
System Usability Scale total score.
Ramy czasowe: End of study, approximately week 5.
System Usability Scale (Brooke, 1996) total score, range 0 to 100, higher scores indicating better usability.
End of study, approximately week 5.

Współpracownicy i badacze

Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.

Sponsor

University of Florida

Śledczy

  • Główny śledczy: Yonghwan Chang, PhD, University of Florida

Daty zapisu na studia

Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.

Główne daty studiów

Rozpoczęcie studiów (Szacowany)

1 września 2026

Zakończenie podstawowe (Szacowany)

1 maja 2027

Ukończenie studiów (Szacowany)

1 sierpnia 2027

Daty rejestracji na studia

Pierwszy przesłany

23 sierpnia 2026

Pierwszy przesłany, który spełnia kryteria kontroli jakości

24 sierpnia 2026

Pierwszy wysłany (Rzeczywisty)

27 sierpnia 2026

Aktualizacje rekordów badań

Ostatnia wysłana aktualizacja (Rzeczywisty)

27 sierpnia 2026

Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości

24 sierpnia 2026

Ostatnia weryfikacja

1 sierpnia 2026

Więcej informacji

Terminy związane z tym badaniem

Słowa kluczowe

Dodatkowe istotne warunki MeSH

Inne numery identyfikacyjne badania

  • IRB202600940
  • 00135244 (Inny numer grantu/finansowania: University of Florida Research Opportunity Seed Fund)

Plan dla danych uczestnika indywidualnego (IPD)

Planujesz udostępniać dane poszczególnych uczestników (IPD)?

NIE

Opis planu IPD

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.

Informacje o lekach i urządzeniach, dokumenty badawcze

Bada produkt leczniczy regulowany przez amerykańską FDA

Nie

Bada produkt urządzenia regulowany przez amerykańską FDA

Nie

Te informacje zostały pobrane bezpośrednio ze strony internetowej clinicaltrials.gov bez żadnych zmian. Jeśli chcesz zmienić, usunąć lub zaktualizować dane swojego badania, skontaktuj się z register@clinicaltrials.gov. Gdy tylko zmiana zostanie wprowadzona na stronie clinicaltrials.gov, zostanie ona automatycznie zaktualizowana również na naszej stronie internetowej .

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