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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...
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...
Criminal behavior patterns of adolescents and young adults who have histories of sexual offenses
(University of Missouri--Columbia, 2008)
from Study 1 also suggested that there were subgroups of SOs whose general patterns of criminal behavior were different from each other. Study 2 demonstrated psychosocial differences between individuals in the three trajectories but few differences...
Adolescent suicide attempts and alcohol use : a developmental psychopathology perspective
(University of Missouri--Columbia, 2009)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The present study characterizes the extent to which the adolescent alcohol-suicide attempt relation varies across severity of suicide attempt (i.e., any suicide attempt vs...
A bayesian investigation into inhibition mechanisms of contrast and assimilation
(University of Missouri--Columbia, 2018)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] The ability to inhibit distractors within an environment while focusing on specific information is crucial to proper functioning. In most inhibition tasks, such as Stroop, the to...
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...
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...
A behavior genetic study of self-harm, suicidality, and personality in white and African-American women
(University of Missouri--Columbia, 2006)
This study is an examination of genetic and environmental risk leading to suicidal and self-harm behaviors in a representative sample of female young adult twins, and racial differences in the strength of those risk factors. ...
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...
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...
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, ...
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...
School-aged children's awareness of their own working memory contents
(University of Missouri--Columbia, 2018)
of estimating the number of items (k) an individual must have in mind based on their performance on some cognitive task. In the present research one such formula is used to obtain a typical estimate for a visual array task in which multiple colored squares must...
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...
Keeping your eyes on the prize versus your nose to the grindstone : the effects of level of goal evaluation on mood and motivation
(University of Missouri--Columbia, 2007)
Though higher level, primary goals provide meaning and direction for a person, evaluating progress on that primary goal versus a sub-goal is risky. Study 1 was a 2 x 2 experiment in which framing level (sub-goal or primary goal) and feedback valence...
Derivation and validation of alcohol phenotypes in a college population : a motivational/developmental approach
(University of Missouri--Columbia, 2008)
over four years were used to derive and validate a typology based on a more proximal etiological factor (i.e., drinking motives) and change over time in heavy alcohol involvement. Data were taken from an incoming undergraduate sample ([nu] = 3...
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...
The influence of race on behavior and the neural correlates of expectancy during an economic decision game
(University of Missouri--Columbia, 2018)
I investigated how another person's race influences resource sharing during a social economic decision-making game that depends on trustworthiness. Seventy-eight university students played a behavioral economics Trust Game with players of different...
Who did what?: age-related differences in memory for people and their actions
(University of Missouri--Columbia, 2006)
. In order to extend the ADH to relatively dynamic stimuli, participants in the present experiments viewed a series of brief video clips, each showing a different person performing a different action. Memory for the actions, for the people, and for who did...
The use of writing strategies to increase organ donation intentions
(University of Missouri--Columbia, 2020)
the writing content, the NG differed from the FG in both linguistic structure and psychological processes while the NG and CG differed mainly in their use of psychological processes and pronouns. In Study 2, a more vivid character creating procedure...