Christopher Steven Marcum

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The extent to which older and younger people do different activities when they are with others and when they are alone is examined in this article. I leverage interpersonal data in combination with information on activities from the American Time Use Survey to shed light on the long held finding that older people have less social contact than younger(More)
Social dynamics are of fundamental importance in animal societies. Studies on nonhuman animal social systems often aggregate social interaction event data into a single network within a particular time frame. Analysis of the resulting network can provide a useful insight into the overall extent of interaction. However, through aggregation, information is(More)
Entity resolution is an important graph mining problem. Entity resolution is particularly interesting and challenging when there is rich relational structure. In this paper, we study the problem of performing entity resolution in familial networks. In our setting, we are given partial views of a familial network as described from the point of view of(More)
OBJECTIVES This study examines the association of age and other sociodemographic variables with properties of personal networks; using samples of individuals residing in the rural western United States and the City of Los Angeles, we evaluate the degree to which these associations vary with geographical context. For both samples, we test the hypothesis that(More)
The informR package greatly simplifies the analysis of complex event histories in 𝖱 by providing user friendly tools to build sufficient statistics for the relevent package. Historically, building sufficient statistics to model event sequences (of the form a→b) using the egocentric generalization of Butts' (2008)relational event framework for modeling(More)
In this paper, we employ archival materials from multiple institutional sources to reconstruct the dynamic network of interorganizational collaboration that emerged in response to the Hurricane Katrina disaster of late 2005. Over the period from initial storm formation through the first week following landfall in Louisiana, we record active participation by(More)
BACKGROUND Influenza vaccination decisions may be influenced by perceived risk reduction related to herd immunity. PURPOSE This paper examines how free-riding (i.e., foregoing vaccination because of reduced risk perceptions related to herd immunity) or protective benefits to the community affect vaccination decisions. METHODS A survey of a nationally(More)
Multiple item scales have long been used to measure latent constructs on individual-level data. This is appropriate when an otherwise unobserved construct is indirectly measured by combining observable correlated characteristics that are thought to measure slightly different dimensions of that construct. Network data, which consist of observations on the(More)
Background and Objectives Perceptions about family members not contributing enough to caregiving are documented to create psychological stress among caregivers. This study investigated whether individuals' perception that family members are under-contributing in caregiving processes was associated with their psychological well-being and explored the factors(More)
Pathways for resource--or other--exchanges within families have long been known to be dependent on the structure of relations between generations (Agree et al., 2005; Fuller-Thomson et al., 1997; Silverstein, 2011; Treas & Marcum, 2011). Much life course research has theorized models of inter-generational exchange--including, the 'sandwich generation'(More)