Identifying and Examining the Effects of Source and Presentation on Responses to Electronic Cigarette Public Education Messages in Young Adult Vapers and Non-vapers - Part 2
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 112
- 试验地点
- 2
- 主要终点
- Visual Attention
研究概览
简要总结
The goal of this clinical trial is to use psychophysiological methods to test the effects of a message source (expert and peer) and message presentation types (one-sided and two-sided) to identify the optimal message type for young adults who vape and do not vape.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Factorial
- 主要目的
- Health Services Research
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 24 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Ages 18-24
- •Fluent in English
- •Either vaping in the past 30 days or not having vaped in the past 30 days but susceptible to vaping
- •Self-reported abstinence of combusted tobacco or marijuana at time of visit
排除标准
- •Ages below 18 or above 24
- •Not fluent in English
- •Not confirmed self-reported abstinence of combusted tobacco or marijuana at time of visit
结局指标
主要结局
Visual Attention
时间窗: The entire duration of message from beginning of its delivery to the completion of viewing, up to 45 minutes.
Visual attention was assessed by measuring dwell time, which is the length of time participants spent on looking at the specific areas of interest (AOIs) collected in miliseconds. Dwell time values were collected for 18 messages, and aggregated to provide the average dwell time scores for each arm. This was done for each vaping status (current vapers and susceptible non-vapers). Higher dwell time scores indicate higher visual attention, indicating better message outcomes.
Allocation of Cognitive Resources
时间窗: Baseline and immediately after viewing all the messages (approximately 45 minutes).
Heart rate values were collected in beats per minute (BPM) on a per-second basis during the presentation of each 18 distinct messages as well as during the immediately preceding black screen (baseline) for each message. Descriptive statistics were used to summarize changes in the BPM values during the message exposure period by comparing the BPM values collected during each message second to the BPM values collected during the immediately preceding baseline period. These change scores were then averaged across all messages within each study arm to generate a mean BPM value per condition, and this was done for each vaping status (current vapers and susceptible non-vapers). Lower BPM values reflect greater cognitive response, therefore indicate better message outcomes.
Arousal
时间窗: Baseline and immediately after viewing all the messages (approximately 45 minutes).
Galvanic Skin Response (GSR) values were recorded in microsiemens on a per-second basis during the presentation of each 18 distinct messages as well as during the immediately preceding black screen (baseline) for each message. Descriptive statistics were used to summarize changes in GSR values by comparing each message response to its preceding baseline period. These change scores were then averaged across all messages within each study arm to generate a mean GSR score per condition, and this was done for each vaping status group (current vapers and susceptible non-vapers). Higher GSR values reflect greater physiological arousal, and indicate better message outcomes.
次要结局
- Attitudes(After exposure to all messages, approximately up to 45 minutes.)
- Behavioral Intentions(After exposure to all messages, approximately up to 45 minutes.)
研究者
Donghee Nicole Lee
Principal Investigator
University of Massachusetts, Worcester