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An in depth evaluation of internal criteria for determining the number of clusters in a data set
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Clustering procedures partition data sets into groups, minimizing the distance within clusters while maximizing the distance between clusters. Clustering can be a powerful tool...
The generalization of positive intergroup attitudes : reducing intergroup anxiety
(University of Missouri--Columbia, 2007)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Contact settings that include equal status, cooperation/pursuit of common goals, acquaintance potential, and authority sanction can improve intergroup attitudes. However...
Testosterone and cortisol in coalitional competition
(University of Missouri--Columbia, 2008)
Fourteen teams of three young men competed in within-group and between-group videogame tournaments. Salivary cortisol and testosterone levels were assessed twice before and twice after each tournament, along with intelligence, ...
Assessing single- and dual-process accounts of recognition memory using hierarchical Bayesian models
(University of Missouri--Columbia, 2010)
to assess the veracity of previous claims. The results of this hierarchical modeling suggest that 1) ROC asymmetry, which has served as strong evidence for particular one and two-process model, is not an artifact of averaging, 2) The Yonelinas two...
Multilevel models for intensive longitudinal data with heterogeneous error structure : covariance transformation and variance function models
(University of Missouri--Columbia, 2008)
across individuals in ILD is extensively studied for multilevel models (MLMs). In chapter 2, a brief introduction to multilevel models and issues in modeling residual covariance structure in MLMs are provided and discussed. In chapter 3, it is shown...
Antecedents and motives for smoking in borderline personality disorder
(University of Missouri--Columbia, 2018)
collected via ecological momentary assessment (EMA) over a three-week period. Analyses using a "case-crossover" analytic strategy identified a number of unique antecedents of smoking but did not indicate any group differences in smoking triggers. Notably...
The relationship between cortisol and social stress in late adolescent girls' friendships
(University of Missouri--Columbia, 2007)
encouragement of problem discussion (Rose, 2002). In study 1, two hundred six college women completed a series of questionnaires on their friendship, temperament, and relationship with their father. In study 2, a sub-sample was randomly assigned to tasks...
Rural and urban breast cancer patients: differential relationships between coping responses and psychological adjustment
(University of Missouri--Columbia, 2007)
and survivors. Some of the findings derived from the studies of urban women may generalize to their rural counterparts; yet rural breast cancer patients are likely to have distinct experiences that influence their physical and psychological well...
The precision of retrieving temporal information : behavioral and electrophysiological studies
(University of Missouri--Columbia, 2020)
. Through four experiments, we adapted a paradigm for assessing the fine-grained precision of retrieval to understand the nature of judging the time at which a memory was encoded. Subjects studied a series of pictures and were subsequently tested on when...
A Bayesian hierarchical model of lexicographic choice
(University of Missouri--Columbia, 2017)
I present a lexicographic, threshold-based model of choice used to evaluate decision makers' preferences among risky alternatives. Using a hierarchical Bayesian frame-work, this model is able to account for observed ...
Maintaining cross-domain objects and features in working memory : implications for storage in models of working memory
(University of Missouri--Columbia, 2007)
A great deal of evidence, both from behavioral studies of cross-domain interference and from neuroimaging, suggests the need for a domain-general store in models of working memory. Baddeley included such a store in an updated version...
Construal levels and the reactivity of state self-esteem to positive and negative experiences
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The reactivity of state self-esteem has been linked to a number of important psychological outcomes, ranging from general well-being to psychological dysfunction. The present...
A hierarchical Bayesian analysis of multiple order constraints in behavioral science
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Psychology is an empirical science, and oftentimes the main target of interest is an empirical effect. For example, we may be interested in human perception and ask participants...
Two brief treatments based on dialectical behavior therapy for binge eating across diagnoses and thresholds : results from a preliminary randomized dismantling study
(University of Missouri--Columbia, 2009)
How can disordered eating be effectively treated? The answer is not yet clear. Although cognitive behavioral therap (CBT) is generally considered the treatment of choice, disordered eating has been show to persist and re-emerge following CBT...
The relations of violence exposure, trauma symptoms and aggressive cognitions to youth violent behavior
(University of Missouri--Columbia, 2005)
Studies show that adolescents in the United States are disproportionately represented among both the victims and the perpetrators of violent crimes (U.S. Department of Justice, 2002). Studies also show that previous exposure ...
Is maturing out of problematic alcohol involvement related to personality change?
(University of Missouri--Columbia, 2008)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Problematic alcohol involvement typically peaks in the early 20s and declines with age. This "maturing out" of alcohol involvement is usually attributed to individuals' attaining...
Ecological momentary assessment of affective instability, impulsivity, and alcohol use in borderline personality disorder
(University of Missouri--Columbia, 2010)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The present study examined the momentary and within-day relationships between mood states, impulsivity, and alcohol use. Participants included 48 psychiatric outpatients with a...
Does ego threat increase paranoia?
(University of Missouri--Columbia, 2007)
The goal of the current research was to test whether an ego threat increases paranoia, whether the increase in paranoia was mediated by state self-esteem, and whether the increase in paranoia was moderated by the personality ...
Common and specific alcohol risk factors in African Americans and Caucasians
(University of Missouri--Columbia, 2010)
Considerable research evidence shows that the alcoholism risk process differs for African Americans and Caucasians (Bachman et al., 1991; Wallace et al., 2003). The current study was designed to test a model examining ...
Exploring the relation between social anxiety and depression in youth: the roles of friendship and peer acceptance
(University of Missouri--Columbia, 2005)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] This study examined whether problems establishing and maintaining positive, supportive relationships with peers may mediate the relation between social anxiety and depression...