Informing Alcohol-Related Risk Intervention With the Prototype Willingness Model: Evaluating Personalized Information and Choices
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 1,204
- 主要终点
- Change in Total Number of Sex Partners Involving Alcohol
研究概览
简要总结
This research examines a theoretically informed web-based personalized feedback intervention to reduce alcohol-related risky sexual behavior among young adult drinkers. To accomplish this objective the study has enrolled a national sample of 1200 young adults aged 18-20 and is in the process of assessing them at 3-, 6-, 9-, and 12-months. The investigators will evaluate the overall efficacy of the interventions based on the Prototype Willingness Model by comparing underage young adult drinkers randomly assigned to receive the reason-based pathway intervention (n=300), the social-based pathway intervention (n=300), or the integrated intervention based on the full Prototype Willingness Model (both pathways, n=300) to an attention control group (n=300). The investigators will examine whether changes in components of both the reasoned and social pathways and drinking mediate intervention efficacy on reducing alcohol-related risky sexual behavior. Past behavior and college student status will be evaluated as moderators of intervention efficacy. The proposed study is both significant and innovative in that it will evaluate brief interventions among a national sample of young adults attending and not attending college, will utilize social networking sites for participant recruitment, and will test the efficacy of interventions based on individual and integrated pathways of the Prototype Willingness Model.
详细描述
Purpose
This research is designed to evaluate a personalized feedback intervention for alcohol-related risky sexual behavior in a longitudinal study of underage young adult drinkers aged 18-20. The intervention is theoretically based on the Prototype Willingness Model (PW Model). The Prototype Willingness Model assumes two pathways to risk behavior: one pathway that is reasoned and one pathway that is socially based. Prior research has shown that interventions consistent with, or based on, components of the Prototype Willingness Model, are efficacious at reducing alcohol use and risky sexual behavior.
The investigators will evaluate the overall efficacy of the interventions based on the PW Model by comparing underage young adult drinkers randomly assigned to receive the reasoned-based pathway intervention (n=300), the social-based pathway intervention (n=300), or the integrated intervention based on the full PW Model (both pathways; n=300) to an attention control group (n=300). The investigators will examine whether intervention efficacy at reducing alcohol-related risky sexual behavior is mediated by reductions in drinking and changes in components of both the reasoned and social pathways (e.g., changes in attitudes, injunctive and descriptive normative perceptions, behavioral intention, perceived vulnerability, prototype favorability, and behavioral willingness). Past behavior and college student status will be evaluated as moderators of intervention efficacy. The investigators will also examine whether effects of all three interventions are maintained across the study follow-up period.
Procedures
This study consists of two phases. Phase 1 consists of a one-time online survey for the purpose of collecting normative data to be used in the personalized feedback intervention in Phase 2. Phase 2 will include an online screening, baseline assessment, and personalized feedback intervention, followed by four follow-up assessments.
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
- Single (Participant)
入排标准
- 年龄范围
- 18 Years 至 20 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •18-20 years old
- •Not in high school
- •Reside within the US
- •Have a valid email address
排除标准
- •There are no exclusion criteria other than not meeting inclusion criteria
- •Study 2 Inclusion & Exclusion Criteria
- •Inclusion Criteria:
- •18-20 years old
- •Not in high school
- •Reside within the US
- •Have a valid email address
- •Not currently in monogamous relationship
- •Drink at least two times per week
- •Have had sex at least once within the past 3 months
- •Did not participate in Phase 1
- •Exclusion Criteria:
- •There are no exclusion criteria other than not meeting inclusion criteria
研究组 & 干预措施
Reasoned-Based Intervention
Receives reason-based intervention.
干预措施: Reasoned-Based Intervention (Behavioral)
Social-Based Intervention
Receives social-based intervention.
干预措施: Social-Based Intervention (Behavioral)
Integrated Intervention
Receives integrated intervention.
干预措施: Integrated Intervention (Behavioral)
Attention Control
Receives attention control feedback.
干预措施: Attention Control (Behavioral)
结局指标
主要结局
Change in Total Number of Sex Partners Involving Alcohol
时间窗: Baseline, 3-, 6-, 9-, and 12-Month Follow-Ups
Assesses total number of sex partners involving alcohol at the baseline, 3-, 6-, 9-, and 12-month time points.
Change in Frequency of Drinking Prior to Sex
时间窗: Baseline, 3-, 6-, 9-, and 12-Month Follow-Ups
Assesses frequency of drinking prior to sex at the baseline, 3-, 6-, 9-, and 12-month time points.
Change in Typical Number of Drinks Consumed Prior to Sex
时间窗: Baseline, 3-, 6-, 9-, and 12-Month Follow-Ups
Assesses typical number of drinks consumed prior to sex at the baseline, 3-, 6-, 9-, and 12-month time points.
Change in Total Number of Casual Sex Partners Involving Alcohol
时间窗: Baseline, 3-, 6-, 9-, and 12-Month Follow-Ups
Assesses total number of casual sex partners involving alcohol at the baseline, 3-, 6-, 9-, and 12-month time points.
Change in Frequency of Condom Use During Sex Involving Alcohol
时间窗: Baseline, 3-, 6-, 9-, and 12-Month Follow-Ups
Assesses frequency of condom use during sex involving alcohol at the baseline, 3-, 6-, 9-, and 12-month time points.
次要结局
未报告次要终点
研究者
Melissa Lewis
Professor, Psychiatry and Behavioral Sciences
University of Washington