基于智能手机的干预针对大学生不健康饮酒的规范和风险感知:随机对照试验的二次调解分析
Joseph Studer1,2, John A Cunningham3,4,5, Elodie Schmutz1
1Addiction Medicine, Department of Psychiatry, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
Journal of medical Internet research
|February 6, 2025
概括
这项研究发现,智能手机应用程序中的个性化规范反通过改变人们对饮酒规范的看法,减少了不健康的酒精使用. 这些发现支持对旨在减少酒精消费的干预措施使用规范反.
科学领域:
- 数字健康干预措施 数字健康干预措施
- 行为心理学 行为心理学
- 公共卫生 公共卫生
背景情况:
- 对不健康饮酒的数字干预通常利用个性化规范反 (PNF) 和个性化健康风险反 (PFR).
- 基础假设表明PNF和PFR影响人们对饮酒规范和风险的看法,随后改变饮酒行为.
- 本研究分析了一项基于智能手机的酒精减少干预随机对照试验中的调解效应.
研究的目的:
- 确定对饮酒规范和健康风险的看法是否介导智能手机干预对酒精使用的影响.
- 研究数字干预影响不健康饮酒行为的机制.
主要方法:
- 一个随机对照试验,涉及1770名瑞士大学生与不健康的酒精使用.
- 参与者接受了带有PNF和PFR的智能手机应用程序或没有干预.
- 调解分析评估了感知到的饮酒规范和风险对6个月饮酒量和大量饮酒日的影响.
主要成果:
- 智能手机的干预显著减少了饮酒量和大量饮酒日.
- 感知到的饮用规范部分介导了干预对饮用量的影响,但感知到的风险没有.
- 通过感知饮酒规范的间接影响对那些高估同行饮酒的参与者来说是显著的.
结论:
- 感知到的饮酒规范,而不是感知到的风险,部分解释了干预如何减少酒精消费.
- 规范性反干预措施有效地阻止不健康的酒精使用.
- 数字健康工具可以利用心理机制来促进行为改变.
相关概念视频
01:21Introduction to Test of Independence
In statistics, the term independence means that one can directly obtain the probability of any event involving both variables by multiplying their individual probabilities. Tests of independence are chi-square tests involving the use of a contingency table of observed (data) values.
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
01:16Hypothesis Test for Test of Independence
The test of independence is a chi-square-based test used to determine whether two variables or factors are independent or dependent. This hypothesis test is used to examine the independence of the variables. One can construct two qualitative survey questions or experiments based on the variables in a contingency table. The goal is to see if the two variables are unrelated (independent) or related (dependent). The null and alternative hypotheses for this test are:
H0: The two variables (factors)...
H0: The two variables (factors)...