Browsing by Author "Cain, MS"

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    Corrigendum to " What is the identity of a sports spectator?" [Personality and Individual Differences 52 (2012) 422-427]
    (Personality and Individual Differences, 2012-05-01) Appelbaum, LG; Cain, MS; Darling, EF; Stanton, SJ; Nguyen, MT; Mitroff, SR
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    Inferring Latent Structure From Mixed Real and Categorical Relational Data
    Salazar, E; Cain, MS; Darling, EF; Mitroff, SR; Carin, L
    We consider analysis of relational data (a matrix), in which the rows correspond to subjects (e.g., people) and the columns correspond to attributes. The elements of the matrix may be a mix of real and categorical. Each subject and attribute is characterized by a latent binary feature vector, and an inferred matrix maps each row-column pair of binary feature vectors to an observed matrix element. The latent binary features of the rows are modeled via a multivariate Gaussian distribution with low-rank covariance matrix, and the Gaussian random variables are mapped to latent binary features via a probit link. The same type construction is applied jointly to the columns. The model infers latent, low-dimensional binary features associated with each row and each column, as well correlation structure between all rows and between all columns.
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    What is the identity of a sports spectator?
    (Personality and Individual Differences, 2012-02-01) Gregory Appelbaum, L; Cain, MS; Darling, EF; Stanton, SJ; Nguyen, MT; Mitroff, SR
    Despite the prominence of sports in contemporary society, little is known about the identity and personality traits of sports spectators. With a sample of 293 individuals, we examine four broad categories of factors that may explain variability in the reported amount of time spent watching sports. Using individual difference regression techniques, we explore the relationship between sports spectating and physiological measures (e.g., testosterone and cortisol), clinical self-report scales (ADHD and autism), personality traits (e.g., NEO "Big Five"), and pastime activities (e.g., video game playing). Our results indicate that individuals who report higher levels of sports spectating tend to have higher levels of extraversion, and in particular excitement seeking and gregariousness. These individuals also engage more in complementary pastime activities, including participating in sports and exercise activities, watching TV/movies, and playing video games. Notably, no differences were observed in the clinical self-report scales, indicating no differences in reported symptoms of ADHD or autism for spectators and non-spectators. Likewise, no relationship was seen between baseline concentrations of testosterone or cortisol and sports spectating in our sample. These results provide an assessment of the descriptive personality dimensions of frequent sports spectators and provide a basic taxonomy of how these traits are expressed across the population. © 2011 Elsevier Ltd.