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E-cigarette Social Media Marketing and Its Perceptions by Youth

14. Juli 2026 aktualisiert von: Jennifer Unger, University of Southern California

Evolution of Influencer-driven E-cigarette Marketing on Social Media and Its Effect on E-cigarette Perceptions and Use Patterns Among Adolescents

The proposed study will conduct two randomized between-subject experiments among 6,000 adolescents (per each experiment) recruited nationwide to test the effects of audio-visual features of e-cigarette influencer marketing on perceptions of influencer credibility, e-cigarette harm perceptions, appeal, and susceptibility to e-cigarette use. This protocol represent the first experiment.

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

We will estimate the effects of visual features often used in e-cigarette influencer marketing on social media on perceptions of influencer credibility, harm perceptions, appeal and susceptibility to e-cigarette use among adolescents. We will assess interaction of the perceived age of influencers (young-looking vs older-looking) with the following features of influencer marketing, using two survey-based experiments: Experiment 1 will assess the effects of theme or social context appeal, i.e., use of generally positively perceived lifestyle contexts (e.g., healthy lifestyle, entertainment) alongside e-cigarette marketing.

Studientyp

Interventionell

Einschreibung (Geschätzt)

6000

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

  • Name: Jennifer B Unger, PI, PhD
  • Telefonnummer: (323) 442-7200
  • E-Mail: unger@usc.edu

Studieren Sie die Kontaktsicherung

  • Name: Julia Vassey, PhD
  • Telefonnummer: (323) 442-7200
  • E-Mail: vassey@usc.edu

Studienorte

  • Vereinigte Staaten
    • California
      • Los Angeles, California, Vereinigte Staaten, 90032
        • Rekrutierung
        • University of Southern California
        • Kontakt:
          • Jennifer Unger, PhD
          • Telefonnummer: 323-333-0580
          • E-Mail: unger@usc.edu

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Kind

Akzeptiert gesunde Freiwillige

Nein

Beschreibung

Inclusion Criteria:

  • 14-17 years of age,
  • English fluency,

Exclusion Criteria:

Not meeting the following criteria:

  • 14-17 years of age,
  • English fluency,

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Sonstiges
  • Zuteilung: Zufällig
  • Interventionsmodell: Fakultätszuweisung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Experimental: Experimental: Videos featuring young influencers promoting e-cigarettes alongside fitness
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.
Experimental: Experimental: Videos featuring young influencers promoting e-cigarettes alongside entertainment
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.
Experimental: Experimental: Videos featuring young influencers promoting e-cigarettes alongside fashion
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.
Experimental: Experimental: Videos featuring young influencers promoting e-cigarettes alongside avatar
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.
Experimental: Experimental: Videos featuring older influencers promoting e-cigarettes alongside fitness
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.
Experimental: Experimental: Videos featuring older influencers promoting e-cigarettes alongside fashion
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.
Experimental: Experimental: Videos featuring older influencers promoting e-cigarettes alongside avatar
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.
Experimental: Experimental: Videos featuring young influencers promoting e-cigarettes alone
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.
Aktiver Komparator: Experimental: Videos featuring older influencers promoting e-cigarettes alone
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.
Placebo-Komparator: Experimental: Videos featuring two neutral profiles of older influencers
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.
Placebo-Komparator: Experimental: Videos featuring two neutral profiles of younger influencers
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.
Experimental: Experimental: Videos featuring older influencers promoting e-cigarettes alongside entertainment
Sonstiges: Exposure to Influencer Age and Context Variations in E-Cigarette Marketing
Exposure to promotional e-cigarette videos where influencers' age appearance (manipulated via an AI-based age filter) and the situational context alongside e-cigarette promotion (manipulated by background settings) are systematically varied. The videos will be embedded within an online survey platform, immediately preceding the outcome assessment.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Harm Perceptions of e-cigarettes
Zeitfenster: Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Responses to one question adapted from PATH, "Based on the videos you just watched, do you think using e-cigarettes for vaping nicotine is harmful to your health?" The outcome was assessed on the 5-point ordinal scale with the following response choices: Not at all harmful, slightly harmful, somewhat harmful, very harmful, extremely harmful.
Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Perceived appeal of e-cigarettes
Zeitfenster: Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Responses to the following questions: using e-cigarette is: not cool/cool, unattractive/attractive were assessed on the 7-point semantic differential scale with the word pairs anchored at each end. The scale was adapted from prior research. The items were combined (by summing all the non-missing values of the items) into one variable (α=0.94).
Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Susceptibility to e-cigarette use
Zeitfenster: Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Susceptibility to e-cigarette use was measured (among never-users of e-cigarettes), using the validated three-item scale (indicating peer influence, intention, and curiosity about e-cigarette use) adapted from PATH, and combined into one variable (α=0.93). Consistent with prior research, the measure was dichotomized with responses "definitely not" to all items being coded as "not susceptible" and responses "probably not," "probably yes", or "definitely yes" being coded as "susceptible.
Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Perceived influencer credibility
Zeitfenster: Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment
Perceived influencer credibility (i.e., honesty, trustworthiness, knowledge) were assessed using a 0 (e.g., dishonest) -100 (e.g., honest) scale that has been validated in prior research.
Assessed 10 times immediately after each of the 10 videos during the 15-minute-long survey-based experiment

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

University of Southern California

Mitarbeiter

National Institutes of Health (NIH)

Ermittler

  • Hauptermittler: Jennifer B Unger, PhD, University of Southern California

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

1. Juli 2025

Primärer Abschluss (Geschätzt)

1. November 2027

Studienabschluss (Geschätzt)

1. Mai 2028

Studienanmeldedaten

Zuerst eingereicht

3. Juli 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

3. Juli 2026

Zuerst gepostet (Tatsächlich)

10. Juli 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

16. Juli 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

14. Juli 2026

Zuletzt verifiziert

1. Juli 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Zusätzliche relevante MeSH-Bedingungen

Andere Studien-ID-Nummern

  • 1R01CA300653-01A1

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

NEIN

Beschreibung des IPD-Plans

survey is anonymous. Data will be publicly available on GitHub repository if manuscripts related to this study are accepted for publication

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .

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