Examining Influence of Social Media Ads on Black and White Adolescents' Food Choices: Master ClinicalTrials.Gov Protocol for Aim 1 (NCT05380505), Aim 2 (NCT06969638) and Aim 3 (NCT06969651).
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 3,650
- 试验地点
- 1
- 主要终点
- Number of Calories Purchased
研究概览
简要总结
This is a Master ClinicalTrials.gov Protocol for study 20-01796:
Aim 1: Examining Influence of Social Media Ads on Black and White Adolescents' Food Choices - Study 1 (NCT05380505)
Aim 2: A Randomized Trial to Examine the Influence of "Likes" in Social Media Food Ads on Black and White Adolescents' Food Purchases - Study 2 (NCT06969638)
Aim 3: Comparing the Effects of Racial Congruence, "Likes," and Food Images in Social Media Ads on Adolescents' Caloric Intake - Study 3 (NCT06969651)
详细描述
The overall objective is to determine the extent to which racially congruent Facebook food ads influence adolescents' food purchases and actual caloric intake. The investigators are conducting three randomized controlled trials (RCTs). The first two aims involve 15-minute online surveys in which participants (Black and White adolescents) rate ads then complete a "food purchasing" task through a virtual vending machine. The third trial will involve an in-person, hour long lab study where participants will be shown ads while investigators covertly monitor their eye movements.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Factorial
- 主要目的
- Prevention
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 13 Years 至 17 Years（Child）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •be 13-17 years of age;
- •identify as only non-Latino White or only Black/African American;
- •report that they log into Facebook at least once daily; and
- •read and speak English.
排除标准
- •Any criteria not met as listed above will bar an adolescent from participating in the study.
研究组 & 干预措施
(Aim 2) White Many Likes
Food ads with many "likes" and featuring White individuals
干预措施: White Ads (Behavioral)
(Aim 2) White Many Likes
Food ads with many "likes" and featuring White individuals
干预措施: Many Likes (Behavioral)
(Aim 2) White Few Likes
Food ads with few "likes" and featuring White individuals
干预措施: White Ads (Behavioral)
(Aim 2) White Few Likes
Food ads with few "likes" and featuring White individuals
干预措施: Few Likes (Behavioral)
(Aim 2) Black Many Likes
Food ads with many "likes" and featuring Black individuals
干预措施: Black Ads (Behavioral)
(Aim 2) Black Many Likes
Food ads with many "likes" and featuring Black individuals
干预措施: Many Likes (Behavioral)
(Aim 1) Condition 1: Race Congruent Ads
Participants will complete a 15-minute survey in which they will be randomized to view and rate Facebook food ads associated with their condition. Then they will complete a food purchasing task in which they will shop in an online store that will display six food items and six beverages. Finally, they will answer demographic questions (e.g., self-reported height and weight) and view a debriefing summary that describes the full purpose of the study.
干预措施: Racially Congruent Ads (Behavioral)
(Aim 2) Black Few Likes
Food ads with few "likes" and featuring Black individuals
干预措施: Black Ads (Behavioral)
(Aim 2) Black Few Likes
Food ads with few "likes" and featuring Black individuals
干预措施: Few Likes (Behavioral)
(Aim 1) Condition 2: Race Incongruent Ads
Participants will complete a 15-minute survey in which they will be randomized to view and rate Facebook food ads associated with their condition. Then they will complete a food purchasing task in which they will shop in an online store that will display six food items and six beverages. Finally, they will answer demographic questions (e.g., self-reported height and weight) and view a debriefing summary that describes the full purpose of the study.
干预措施: Racially Incongruent Ads (Behavioral)
(Aim 3) Block 1: Black-Food
Exposure to ads with a Black person featuring a food product
干预措施: Black Ads (Behavioral)
(Aim 3) Block 2: White-Food
Exposure to ads with a White person featuring a food product
干预措施: White Ads (Behavioral)
(Aim 3) Block 3: Black-Non Food
Exposure to ads with a Black person featuring a non-food product
干预措施: Black-Non Food (Behavioral)
(Aim 3) Block 4: White-Non Food
Exposure to ads with a White person featuring a non-food product
干预措施: White-Non Food (Behavioral)
(Aim 3) Block 5: Food-Many Likes
Exposure to ads with many "likes" featuring a food product
干预措施: Many Likes (Behavioral)
(Aim 3) Block 6: Non Food-Many Likes
Exposure to ads with many "likes" featuring a non-food product
干预措施: Non Food-Many Likes (Behavioral)
(Aim 3) Block 7: Food-Few Likes
Exposure to ads with few "likes" featuring a food product
干预措施: Few Likes (Behavioral)
(Aim 3) Block 8: Non Food-Few Likes
Exposure to ads with few "likes" featuring a non-food product
干预措施: Non Food-Few Likes (Behavioral)
结局指标
主要结局
Number of Calories Purchased
时间窗: Day 0 (approximately 15 minutes )
Aim 1 Participants only.
Caloric Intake
时间窗: Day 0 (approximately 60 minutes)
Aim 3 Participants only. Number of calories consumed during the study protocol.
Visual Attention to Ad Features - First Fixation
时间窗: Day 0 (approximately 60 minutes)
Aim 3 Participants only. Measured as time to first fixation to the advertisement.
Visual Attention to Ad Features - Number of Fixations
时间窗: Day 0 (approximately 60 minutes)
Aim 3 Participants only. Measured as the number of fixations on ad features.
Visual Attention to Ad Features - Gaze Duration
时间窗: Day 0 (approximately 60 minutes)
Aim 3 Participants only. Measured as the gaze duration during the advertisement.
Number of Calories Purchased
时间窗: Day 0 (approximately 5 minutes)
Aim 2 Participants only.
次要结局
- Attitude Toward Ad(Day 0 (approximately 15 minutes ))
- Attitude Toward Ad(Day 0 (approximately 5 minutes))
- Time Spent Viewing Ad(Day 0 (approximately 15 minutes ))
- Engagement with Ads(Day 0 (approximately 5 minutes))