Quantitative Psychology Commons^™

It’S All The Rage: An Animated Approach To Screening For Postpartum Depression, Amanda Gorham

Doctoral Dissertations

Postpartum depression presents a complication for mothers which can, in some cases, be severe and even life-threatening. Instruments commonly used to screen for this psychological condition have been challenged by an extensive body of literature, with many mothers being unidentified and even untreated for their symptoms. The presented research introduces a newly developed screening instrument for detecting probable postpartum depression using text-free scenario-based animations, based on the lived experience of the condition as qualified by empirical research and the existing body of literature. Developed items were controlled for quality via Think Aloud Protocol and alignment studies with subject matter experts …

Uncovering The Neural And Behavioral Factors That Underlie Changes In Processing Visual Orientation, Patrick Sadil

Doctoral Dissertations

From moment to moment, the visual environment appears stable; despite prolonged scrutiny, the edge of a desk is not perceived to change. But this apparent stability emerges from perceptual and decisional systems that undergo continuous modulation. In two chapters, I focus on two different kinds of modulation to the processing of visual orientation (i.e., the tilt of an edge). In both chapters, the form of modulation is latent, obscured by standard analyses. To detect those latent changes in perceptual decisions, I develop in this dissertation new statistical tools, at both behavioral and neural levels. In the first chapter, I consider …

The Impact Of Levodopa Administration On Learning From Short-Term And Long-Term Action Consequences: A Paradigm Validation., Masood Rezaei

Electronic Thesis and Dissertation Repository

Behavioral and neuroimaging studies have identified two valuation systems in the human brain for controlling behavior known as model-free (MF) and model-based (MB). MF is based on immediate evaluation and MB is based on long-term evaluation of the outcome of our decisions. Previous studies suggest that dopamine baseline activity may play an important role in the balance between the two systems and determine how they compete or interact in controlling our actions. The overarching aims of this study is to investigate the impact of levodopa administration on learning from immediate and long-term action consequences, and to dissociate the role of …

Development And Validation Of A Multidimensional Scale For Measuring Public Confidence In The Criminal Justice System, Jimin Pyo

Dissertations, Theses, and Capstone Projects

Two studies were conducted with an aim of developing multidimensional measures of public confidence that are conceptually integrated, psychometrically sound, and useful in predicting individuals’ law related behaviors. Study 1 involves two-phased construction of scale in which a preliminary inventory was generated (Phase 1) and then finalized after evaluating psychometric properties based on 304 US adults recruited through Amazon’s Mechanical Turk (MTurk) (Phase 2). As a result, six multidimensional scales were constructed respectively for measuring efficiency-, finality-, fairness-, strictness-, accuracy-, and transparency-oriented confidence. Despite more complexity of factor structures than originally expected, results of psychometric evaluation six scales of confidence …

Implicit Bias And Voluntarily Childfree Adults, Virginia Elizabeth Powell

Electronic Theses and Dissertations

This quantitative study aimed to determine if there is a negative bias towards voluntarily childfree adults or an association of negative views and attitudes with voluntarily childfree adults, controlling for other participant characteristics such as race, religion, or sexual orientation. At this stage in the research, voluntarily childfree adults are generally defined as legal adults who have the intention to remain childfree for the rest of their lives, due to reasons other than fertility issues. A negative view or bias is defined as any attitude which is not a desirable interpretation of behavior or lifestyle. A negative bias against voluntarily …

Jangle Fallacy: Is Grit Distinct From Other Psychological Constructs?, Natasha Godkin

Electronic Theses and Dissertations

This paper assessed the redundancy of the construct of grit (Crede, Tynan, Harms, 2017) compared to other similar constructs using structural equation modeling to remove the effect of measurement error. A series of models regressed grit and its subdomains (passion and perseverance of effort) on self-control, conscientiousness, achievement striving, and resilience. The R-squared values for these models ranged from 0.62 to 0.89. It is concluded that the concept of grit is mostly redundant with other constructs and is therefore an example of a Jangle fallacy (Kelley, 1927). The unique aspect of grit is mostly related to its passion …

Intersectionality Between Sex/Gender And Race/Ethnicity On Cognitive Trajectories And Development Of Alzheimer’S Disease, Justina Frances Avila-Rieger

Psychology ETDs

The current study examined the interactive effects of race/ethnicity and sex/gender on cognitive trajectories of older adults. Participants were a total of 5258 non-Hispanic White (NHW), Black, and Hispanic men and women in the Washington/Hamilton Heights/Inwood Columbia Aging Project. Multiple-group latent growth curve modeling was used to examine trajectories across sex/gender by racial/ethnic groups and to determine the relationship between specific socio-cultural/health indicators and cognitive decline, including childhood socioeconomic position, years of education, adult income and occupation, cardiovascular risk factors, and marital status. Sex/gender differences in baseline cognitive test performance varied as a function of race/ethnicity and racial/ethnic differences in …

The Effects Of Undesirable Distractors On Estimates Of Ability, Kathryn N. Thompson

Masters Theses, 2020-current

Distractors, or the incorrect options, are an important part of the multiple-choice item. Previous literature has supported the inclusion of distractors when estimating abilities. While the effects of well-functioning distractors on estimates of ability have been examined, research has neglected to examine the effects of undesirable distractors on estimates of ability. Undesirable distractors are defined as distractors that are opposite of what test-developers expect or want distractors to behave. For instance, an upper lure distractor is one that high ability examinees select rather than selecting the correct answer. A simulation study was employed to determine these effects by varying undesirable …

Propensity Score Matching And Generalized Boosted Modeling In The Context Of Model Misspecification: A Simulation Study, Briana G. Craig

Masters Theses, 2020-current

In the absence of random assignment, researchers must consider the impact of selection bias – pre-existing covariate differences between groups due to differences among those entering into treatment and those otherwise unable to participate. Propensity score matching (PSM) and generalized boosted modeling (GBM) are two quasi-experimental pre-processing methods that strive to reduce the impact of selection bias before analyzing a treatment effect. PSM and GBM both examine a treatment and comparison group and either match or weight members of those groups to create new, balanced groups. The new, balanced groups theoretically can then be used as a proxy for the …

The Effectiveness Of Implementing A Collaborative Mental Health Approach On Quality Of Life For Individuals Of Low Socioeconomic Status, Tyler Z. Tooley

MSU Graduate Theses

The ultimate purpose of this study is to provide insight and education to mental health clinicians, politicians and the general public of the numerous effects poverty has on mental health, in addition to the most beneficial ways to combat those insidious effects. The specific barriers met by individuals of low socioeconomic status severely affect psychological and physical health, as well as social and environmental relationships, which therefore diminish overall quality of life. The aim of this study is to examine the effectiveness of implementing a collaborative mental health approach for low income individuals on length of engagement in services and …

Differential Patterns Of Theta Activation Underlying Various Cognitive Control Strategies, Jarrod Eisma

Biomedical Engineering Undergraduate Honors Theses

In this study, EEG was recorded from 157 participants at the University of Arkansas as they performed three computer tasks that tested inhibitory control (Go/Nogo Task), proactive and reactive control (AX-Continuous Performance Task), and resolving response conflict (Global/Local Task- modified Flanker Task). Time-frequency analysis (ERSP) was the primary focus of this study, in order to take advantage of the temporal and frequential characteristics of EEG recordings. The ERSPs and following statistical analysis showed significantly higher midfrontal theta band (4-8 Hz) power values for target trials (those that required more cognitive control) than control trials, which indicated that the procedure was …

Exploring Differential Effects Of Therapeutic Alliance Across Treatment Therapies, Alexandra T. Tonigan

Individual, Family, and Community Education ETDs

Effects of therapeutic alliance has been widely studied for depression, anxiety, and interpersonal problems and been found to have small to moderate positive outcomes. Consistent findings are lacking, however, regarding the relationship between therapeutic alliance, treatment therapy, and client characteristics, in alcohol use disorder (AUD) treatment.

The current paper utilizes data from Project MATCH to assess the differential effects of therapeutic alliance on 12-month alcohol abstinence across clients receiving Cognitive Behavioral Therapy (CBT), Motivational Enhancement Therapy (MET), and Twelve Step Facilitation (TSF) treatment. Moreover, higher order interactions were explored to determine whether such effects differed across client characteristics. This research …

Effects Of The Imposter Phenomenon, Stress, And Belonging On Perfectionism In Freshmen Undergraduate Students, Taylor M. Pratt

Brescia Psychology Undergraduate Honours Theses

This study investigated whether students who scored high in Perfectionistic Concerns (i.e., unhealthy perfectionists) would have higher Imposter Phenomenon and stress scores, as well as lower self-efficacy, belonging, and social acceptance scores. Additionally, the study sought to clarify how the two dimensions of perfectionism, Concerns and Strivings, are associated with the Imposter Phenomenon. The sample consisted of 48 female undergraduate students at a university in London, Ontario. A Pearson correlation analysis revealed a significant positive correlation between Perfectionistic Concerns and the Imposter Phenomenon. A significant positive correlation was also found between stress and the Imposter Phenomenon. Additionally, a significant …

Can Ratings Of Item Location Enhance Statistical Item Parameter Estimation? Extending The Feasibility Of Unfolding Irt Models, Michael Mckenna

Dissertations

Research and development of modern psychometric methods such as item response theory have drastically changed the way we understand and carry out the measurement of psychological constructs. Despite this, there has been relatively little adoption by psychological researchers to incorporate these methods into their research. While multiple explanations are surely valid, one oft stated reason is the large sample size requirements of these methods. The sample size requirements of item response theory are needed so that effective estimation of item parameters can be carried out. In an attempt to make these modern measurement methods more accessible and feasible to psychological …

Role-Differentiated Bimanual Manipulations Efficiency: The Difference In Speed For Rdbms Based On Age, Toy-Type, And Infant Hand Preference, Sarai Mikal Cortina

Theses and Dissertations

Role-differentiated bimanual manipulation (RDBM) is a complex behavior requiring the complementary movement of two hands to achieve a common goal. The current study investigated the relation of RDBM efficiency (speed to complete a successful RDBM) with hand preference, toy type (simple/difficult), age, and hand used to perform the RDBM. This study observed 46 infants between the ages of 9 to 14 months, each with a different hand preference category. Changes in RDBM efficiency across time were examined across different hand preference groups for RDBMs performed on simple toys using the right hand. The analysis revealed that early-right preference infants had …

Testing The Convergent Retrieval Learning Theory Of Testing Effects, William J. Hopper

Doctoral Dissertations

What is learned from retrieving a memory that is not learned by studying the same information? In response to this question, I have proposed a new theory of retrieval-based learning in which I argue that retrieval strengthens the ability to completely activate all portions of a memory trace from an initial state of partial activation. In effect, retrieval serves to unitize the features of a memory, making the entire memory remain retrievable in the future when cue-related activation may be weaker. This theory, called the Primary and Convergent Retrieval (PCR) model, explains why practice tests produce both better long-term retention …

Identifying Construct-Irrelevant Variance And Construct Under-Representation As Support Of External Evidence Of Validity, Jennifer Case

Dissertations, Theses, and Capstone Projects

Test validity has commonly been defined in terms of a test measuring what it is supposed to measure, however there has been a century of discussion and debate on test validity and what qualifies as evidence of test validity. Some argue in favor of restricting test validity evidence to that which is internal to the test, such as the test items, while others argue that external information, such as the relationships with other variables, also offers evidence toward test validity. Cronbach and Meehl’s groundbreaking paper in 1955 introduced the concept of the nomological net, which is the construct’s lawful relationships …

The Effects Of Virtual Reality On Motor Performance In The First Person Point Of View, Alina Augustin

Senior Projects Spring 2020

Previous research has shown that visualization is an effective method used to improve motor performance (Ridderinkhof, 2015) and that similar neural pathways are activated while visualizing and performing a task (Decety, 1989). More recent research has begun to look at whether virtual reality similarly improves motor performance (Bideau, 2004). The advantages of virtual reality include the ability to practice without physical exertion (Ridderinkhof, 2015) and a better cognitive understanding of complex tactics (Science-based cognitive assessment & training, 2019). In the current study, the effects of virtual reality and visualization on motor performance in sports is tested based on the success …

Atheoretical Versus Theory-Based Approaches In Promoting Safer Adhd-Medication Prescribing For Adults, Kathleen A. Fairman

Walden Dissertations and Doctoral Studies

Gaps between treatment guidelines and medical decisions persist despite interventions with physicians, which are mostly atheoretical. The purpose of this retrospective cross-sectional study was to compare atheoretical and theory-based logistic regression models of a binary outcome: potentially unsafe prescribing of attention-deficit hyperactivity disorder (ADHD) medications to adults. Social cognitive theory and self-determination theory provided the framework for the study. Predictors were framed as social cognitive theoretical constructs: knowledge (e.g., physician specialty) and environmental influence (e.g., interventions). Atheoretical hypotheses were based on legislation mandating meaningful use of electronic health records and computerized decision support (CDS). Theory-based hypotheses were derived from literature …

An Examination Of Social Connectedness On Ptsd And Freezing In A Student Military Population, Jessica Marie Ledwith

UNF Graduate Theses and Dissertations

This study investigates the impact of social connectedness (SC) and post-traumatic stress disorder (PTSD) in a military college population, and their relation to physiological measures such as body sway, heart rate (HR), and heat rate variability (HRV). According to previous research, people with PTSD are more likely to exhibit a freezing response to affective images. In the present study, we explore the potential freezing response for military personnel at the levels of PTSD symptom groups and social connectedness. We also investigate the possible buffering effect social connectedness has on the outcome of PTSD and freezing. There was a total of …

Fight, Flight, Or Freezing? Investigating The Immobility Response In Military Veterans, Paige Elizabeth King

UNF Graduate Theses and Dissertations

When the body is faced with threat to life or limb, the autonomic nervous system works to overcome the danger – by either fight, flight, or freezing. While immobility may not appear to be the most logical solution, theories exist that it allows for judgement of the situation and preparation for action. This study investigated the stress response that military veterans, with or without post-traumatic stress disorder (PTSD), demonstrate when shown unpleasant images. Researchers wanted to determine the extent to which veterans would show freezing or immobile responses when under an unpleasant image condition. It was hypothesized that veterans who …

Student Voices In Teacher Evaluation: A Multilevel, Latent Factor Investigation Of Teacher Quality, Kathleen J. Hoff

Walden Dissertations and Doctoral Studies

Teacher effectiveness is a key driver of student achievement but persistently difficult to measure. Although precollege student surveys are one cost-effective alternative to traditional observation measures, little empirical research has been conducted on their factor structure. The purpose of this study was to investigate the validity of the Tripod Survey, a widely adopted precollege survey, as a measure of teacher effectiveness. The dataset was the Measures of Effective Teaching (Year 1, N = 1,024 Grade 9 classroom sections, 20,500 students; Year 2, N = 488 Grade 9 classroom sections, 8,658 students). The dynamic model of educational effectiveness guided the study. …

Phenotype Extraction: Estimation And Biometrical Genetic Analysis Of Individual Dynamics, Kevin L. Mckee

Theses and Dissertations

Within-person data can exhibit a virtually limitless variety of statistical patterns, but it can be difficult to distinguish meaningful features from statistical artifacts. Studies of complex traits have previously used genetic signals like twin-based heritability to distinguish between the two. This dissertation is a collection of studies applying state-space modeling to conceptualize and estimate novel phenotypic constructs for use in psychiatric research and further biometrical genetic analysis. The aims are to: (1) relate control theoretic concepts to health-related phenotypes; (2) design statistical models that formally define those phenotypes; (3) estimate individual phenotypic values from time series data; (4) consider hierarchical …