The Impact of Healthy Lifestyle Imagery Alongside E-cigarettes in Social Media Influencer Marketing on Perceptions of E-cigarettes Among Adolescents: a Survey-based Experiment
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 664
- 试验地点
- 2
- 主要终点
- Harm perceptions of e-cigarettes
研究概览
简要总结
Adolescents (N = 664) participated in the online survey-based experiment. They were randomly shown 10 videos, featuring influencers promoting e-cigarettes alongside healthy lifestyle activities (experimental group), or e-cigarette promotion alone (control). After watching each video, participants rated perceptions of influencer credibility (i.e., honesty, trustworthiness, knowledge) on the scale of 0 (e.g., dishonest) to 100 (honest).
Among all participants, harm perceptions and appeal of e-cigarettes was assessed. Susceptibility to use e-cigarettes was assessed among never users of e-cigarettes. These outcomes were then compared among participants who perceived influencers as credible and those who perceived influencers as non-credible.
详细描述
Adolescents (13-17 years of age) living in California were recruited by Qualtrics marketing research panel to participate in a survey on tobacco-related attitudes and behaviors. Qualtrics, a research panel agency, has been used in prior research to survey adolescents about their tobacco-related attitudes and behaviors. Participants were provided with a survey URL link. After completing informed consent, participants completed the survey online. The study was approved by the University of Southern California Institutional Review Board (UP-21-00352). Respondents were randomly assigned to watch 10 10-second long TikTok videos in either experimental (influencers promoting e-cigarettes alongside healthy lifestyle activities) or control group (influencers promoting e-cigarettes alone).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Factorial
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 13 Years 至 17 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •13-17 years of age,
- •English fluency,
- •Current California resident.
排除标准
- •Not meeting these criteria:
- •13-17 years of age,
- •English fluency,
- •Current California resident.
结局指标
主要结局
Harm perceptions of e-cigarettes
时间窗: one-time assessment after the experimental exposure (immediately post-treatment)
Responses to two questions adapted from PATH, "Based on the videos you just watched, do you think using e-cigarettes for vaping nicotine is harmful to your health?" "Based on the videos you just watched, do you think people harm themselves when they use e-cigarettes for vaping nicotine?" Outcome was assessed on the 0 (Not harmful at all) - 100 (Very harmful) scale. Since the items were closely related (α=0.87), they were combined (by summing all the non-missing values of the items) into one variable.
Perceived appeal of e-cigarettes
时间窗: one-time assessment after the experimental exposure (immediately post-treatment)
Responses to the following questions: using e-cigarette is: * not cool/cool, * unattractive/attractive, * boring/fun 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=0.93).
Perceptions of influencer credibility
时间窗: assessed 10 times immediately after each video
Perceptions of 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.
Susceptibility to use e-cigarettes
时间窗: one-time assessment after the experimental exposure (immediately post-treatment)
Susceptibility to use e-cigarettes was measured (among never-users of e-cigarettes), using the validated three-item scale 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."
次要结局
未报告次要终点
研究者
Jennifer Unger
Professor
University of Southern California