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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...
Associations between psychosis risk and emotional distress disorders with cortical surface morphometry
(University of Missouri--Columbia, 2020)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI-COLUMBIA AT REQUEST OF AUTHOR.] Neuroimaging studies have consistently found structural cortical abnormalities in schizophrenia, especially in structural hubs. However, it is unclear what...
Event-history mediator models of college attrition: risk goups and risk factors
(University of Missouri--Columbia, 2007)
estimated the effects of a number of factors on college attrition, in 3,290 FGEN and non-FGEN students over four years, using event-history analysis. Results showed that, FGEN students were indeed more likely to leave college than their non-FGEN peers...
Predictors of polypharmacy and off-label prescribing of psychotropic medications : a national survey of child psychiatrists
(University of Missouri--Columbia, 2011)
-fitting, theoretically sound model predicting polypharmacy and off-label prescribing of medications included just one predictor variable: total number of diagnoses. These findings suggest that comorbidity is an important issue in the pharmacotherapy of children...
Disentangling alcohol-specific alcohol use disorder criteria from externalizing psychopathology using an empirically driven approach
(University of Missouri--Columbia, 2020)
Within current mental disorder classification systems, alcohol use disorder (AUD) and psychopathology, more broadly, are conceptualized as distinct categorical disorders. Recent classification research has focused on ...
Ambulatory assessment of physical pain, emotional distress, and alcohol use
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The available research suggests that many individuals with chronic pain drink alcohol to manage their pain. However, few studies have examined the association of alcohol and pain...
Alcohol consumption, executive function and risky decision making
(University of Missouri--Columbia, 2009)
Previous research has shown that alcohol intoxication can adversely affect behavior by impairing higher cognitive function (e.g., Giancola, 2000) and can lead to increased risk-taking (Leigh, 1999) via impaired executive ...
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...
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 ...
Boundary conditions for a visual working memory capacity model
(University of Missouri--Columbia, 2009)
Cowan's K (Cowan, 2001) is an effective measure of visual working memory capacity and has been widely accepted by working memory researchers in recent years. However, one fundamental assumption of this measure, so called ...
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...
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...
Cognitive load and time based forgetting
(University of Missouri--Columbia, 2009)
the case against absolute time-based forgetting is strong, we believe this view to be incomplete. In 2 experiments, we show that substantial forgetting occurs due to the passage of time in at least one situation. On each trial, an array of novel characters...
Freshmen college students with and without asthma : predictors of changes in smoking during the first semester
(University of Missouri--Columbia, 2008)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Prior research has found that young adults with asthma are equally as likely or more likely to smoke cigarettes than their peers who do not have asthma, despite the potential...
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 ...
The effects of tetrahydrobiopterin (BH4) treatement on nonverbal working memory-related brain activations and connectivity in individuals with phenylketonuria
(University of Missouri--Columbia, 2016)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Previous research suggests that phenylketonuria (PKU) is associated with disruptions in structural and functional connectivity that may contribute to impairments in working...
The impact of gender and traditional norm adherence on event-level alcohol outcomes
(University of Missouri--Columbia, 2021)
whether these differences are attributable to a number of factors that differ between men and women, including biological differences, personality traits, mood, and drinking motives. Multiple studies (McCreary et al., 1999; Neve et al., 1997) have...
Leveraging rhetorical style to reduce the existential threat of inclusive messaging
(University of Missouri--Columbia, 2021)
on meaning in life. Study 3 (N = 556) sought to conceptually replicate these patterns in the context of university identity. Implications and future direction for the science of ideology, well-being, and diversity, are discussed....
Short and long-term effects of birth weight and neonatal medical complications on children's emotional and behavioral outcomes
(University of Missouri--Columbia, 2008)
and adjustment are not well understood. The current investigation examined the effects of birth weight and neonatal medical complications on children's emotional and behavioral outcomes at age 2 (Study 1, N = 9074, 51.1% boys) and at age 10 (Study 2, N = 771, 48...
Broadening the perspective on employee absenteeism : the effects of work group and nonwork factors
(University of Missouri--Columbia, 2009)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The present study examined employee absenteeism in relation to variables new to absenteeism literature while addressing several methodological issues highlighted...