Comparing Social Network Influence on Alcohol Use Using Affiliation Data

描述（由申请人提供）：拟议研究的目标是将友谊关系（演员-演员网络）的单模式网络数据分析扩展到双模式（演员-事件隶属关系/双方）网络数据，以模拟共同参与基于学校的有组织活动对青少年饮酒的影响。第一个目的是确定一个新的概念化的隶属关系为基础的网络影响力的效用直接建模（使用多个网络自相关模型）的影响，两种模式/隶属关系曝光对饮酒行为控制其他竞争的同行影响主要是那些基于亲密的朋友或同行占据类似的网络位置。第二个目标是确定多种形式的网络效应对酒精使用的相对贡献，以及这些网络效应如何作为风险因素一起运作。R 00阶段的研究将重点关注与酒精相关的隶属网络的结构特性和双模网络结构分析的动态性。与此相关，第三个目的是估计双模式指数随机图模型（ERGM）的几何加权技术的新规格，以检验共同联系对青少年饮酒的影响，并将其扩展到纵向分析，通过随机建模单模式和双模式网络的协同进化来检查交叉-依赖关系的演变友谊和从属关系网络与酒精的使用在一个演员为基础的建模框架。第四个目标是探索社会机制，驱动联合动力学的隶属网络结构的条件下，一种模式的朋友的网络，在酒精使用。解决这些问题将有助于确立PI的长期职业目标，即确立自己作为双模式网络专家的地位，这与主要导师（托马斯瓦伦特）在以青少年饮酒为中心的物质使用同伴影响研究中分析单模式网络的主要方法是分开和不同的。K99和R 00阶段的研究使用来自国家青少年健康纵向研究（Add Health）和南加州大学收集的数据。不仅拟议的研究有可能提供洞察如何基于社会影响力模型的学校为基础的酒精预防计划应该实施，使用双模式网络数据的拟议方法不需要收集网络数据（社会计量学）。因此，这种方法有可能被应用到各种各样的研究，并在传统上不能使用网络方法的公共卫生的各个领域使用。公共卫生相关性：该研究计划特别揭示了同伴影响的新模式，这将有助于理解青少年饮酒（和其他物质）的病因和改善，它明确指出了NIH的使命，即产生与“生命系统行为”相关的知识，并将这些知识应用于延长健康寿命，减少疾病和残疾的负担。" 公共卫生相关性：拟议研究的目标是开发和探索通过团体关系传播药物使用的可能性，通常是以学校赞助的体育运动或类似活动的形式。如果联系曝光有任何地方接近传统的社会影响力模型的解释力，扩大的机会，数据收集和影响力估计使用传统上收集的数据，但不以这种方式使用，将提供一个新的洞察力，了解病因和改善青少年酒精（和其他物质）的使用。

DESCRIPTION (provided by applicant): The goal of the proposed research is to extend one-mode network data analysis of friendship relations (actor-by-actor network) to two-mode (actor-by-event affiliation/bipartite) network data to model the influence of co-participation in school-based organized activities on adolescent alcohol use. The first aim is to determine the utility of a new conceptualization of affiliation-based network influence by directly modeling (using multiple Network Autocorrelation Models) the effect of two-mode/affiliation exposure on drinking behavior controlling for other competing peer influences primarily those based on close friends or peers occupying similar network position. The second aim is to determine the relative contributions of multiple forms of network effects on alcohol use, and how these network effects operate together as risk factors. The research during the R00 phase will focus on structural properties and the dynamics of two-mode network structural analysis of affiliation networks in relation to alcohol. Related to this, the third aim is to estimate the new specification of two-mode Exponential Random Graph Model (ERGM) with geometric weighting technique to test the effects of co-affiliation on adolescent alcohol use, and it will be extended to longitudinal analysis by stochastically modeling the co-evolution of one-mode and two-mode networks to examine the cross-dependencies in the evolution of friendship and affiliation networks in relation to alcohol use within an actor-based modeling framework. The fourth aim is to explore social mechanisms that drive joint dynamics of affiliation network structures conditioned on one-mode friends' networks in relation to alcohol use. Addressing these questions would help establish the PI's long-term career goal of establishing herself as a specialist in two-mode network, which is separate and distinct from the primary mentor's (Thomas Valente) main approach of analyzing one-mode networks in the study of peer influence on substance use centered on adolescent alcohol use. Research for both K99 and R00 phase use data from both the National Longitudinal Study of Adolescent Health (Add Health) and from USC-collected data. Not only does the proposed study have the potential to provide insight into how school-based alcohol prevention program based on social influence model should be implemented, the proposed approach of using two-mode network data does not require the collection of network data (sociometrics). Therefore this methodology has the potential to be applied to a wide variety of studies and used in various fields of public health that traditionally have not been able to use network methods. PUBLIC HEALTH RELEVANCE: The research plan specifically uncovers new modes f peer influence that will help understand the etiology and amelioration of adolescent alcohol (and other substance) use, it explicitly addresses the NIH mission of producing knowledge related to the "behavior of living systems and the application of that knowledge to extend healthy life and reduce the burdens of illness and disability." PUBLIC HEALTH RELEVANCE: The goal of the proposed research is develop and explore the possibilities of the transmission of substance use through group affiliations, frequently in the form of school-sponsored sports or similar activities. If affiliation exposure has anywhere near the explanatory power of traditional social influence models, the expanded opportunities for data collection and influence estimation using data that is traditionally collected but not used in this way will provide a substantial new source of insight for understanding the etiology and amelioration of adolescent alcohol (and other substance) use.