Self-Determination Theory as A Framework For Evaluating Within-Person Effects Of Personalized Normative Feedback On Drinking
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 136
- 试验地点
- 1
- 主要终点
- Between-Person Self-Determination by PNF Interaction Predicting Consumption
研究概览
简要总结
This study evaluates within-person and between-person effects of a personalized normative feedback intervention and injunctive norms as they are altered by self-determination in heavy drinkers. Half of participants will receive personalized normative feedback and the other half will receive control feedback about media use habits.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
盲法说明
Participants will be assigned to and receive feedback via the computer. Once they have received feedback a research assistant will print this feedback for them to take home. At this time, research assistants will become unblinded to condition, but will not administer any new procedures other than answering participant questions.
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Student at the University of Houston
- •Above 18 years of age
- •Heavy drinker (more than 4 drinks [women] or 5 drinks [men] on a single occasion in the last 2.5 weeks and drinks, on average, at least once per week.
排除标准
- 未提供
研究组 & 干预措施
Alcohol-Specific Personalized Normative Feedback
Participants will receive feedback about their average number of days on which alcohol was consumed, average drinks per occasion, and average number of drinks per week. This feedback will include the participant's averages reported at baseline, the participant's descriptive norm of others' averages (what they think others drank), and actual others' drinking. Feedback will be about other students at their university of the same sex.
干预措施: Alcohol-Specific Personalized Normative Feedback (Behavioral)
Social Media Personalized Normative Feedback
Participants will receive feedback about their number of hours texting, on social media websites, and playing video games. This feedback will include the participant's averages reported at baseline, the participant's descriptive norm of others' averages (what they think others did), and actual others' behavior. Feedback will be about other students at their university of the same sex.
干预措施: Social Media Personalized Normative Feedback (Behavioral)
结局指标
主要结局
Between-Person Self-Determination by PNF Interaction Predicting Consumption
时间窗: 2-4 Weeks
A structural equation model will be fit with baseline consumption, self-determination, intervention condition, and the interaction between self-determination and condition predicting follow-up alcohol consumption. Consumption will be measured with the Alcohol Consumption Index, Quantity-Frequency-Peak Alcohol Use Index, and the Daily Drinking Questionnaire. These scales will be used as indicators of a single latent consumption variable. That latent consumption measure will be the outcome of interest.
Within-Person Self-Determination by PNF Interaction Predicting Consumption
时间窗: 17 Days
A multilevel model will be fit with baseline consumption, daily self determination, intervention condition, and the interaction between condition and daily self-determination predicting daily alcohol consumption. Consumption will be measured as the number of drinks consumed the previous evening.
次要结局
- Within-Person Self-Determination by PNF Interaction Predicting Alcohol-Related Problems(17 Days)
- Between-Person Self-Determination by PNF Interaction Predicting Alcohol-Related Problems(2-4 Weeks)
研究者
C. Raymond Knee
Professor
University of Houston