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An Exploration Of Deaf Education Through The Experiences Of Culturally Deaf Adults, Stephanie Beatty 2019 Walden University

An Exploration Of Deaf Education Through The Experiences Of Culturally Deaf Adults, Stephanie Beatty

Walden Dissertations and Doctoral Studies

Deaf students have unique linguistic and cultural needs that are cultivated in social settings; however, these needs have received minimal consideration from school administrators and policy makers when designing and implementing educational programs. Inquiry regarding how Deaf people learn in social situations and whether these processes are present in formal educational settings is necessary to understand how to better serve this population in school. Observations were used to provide insight on how deaf people teach and learn from one another in social/informal settings. Individual interviews with 11 Deaf people ages 18 to 40 provided insight regarding personal experiences in ...


Adhd And Self-Regulation In The Workplace, Kristine Lynne Barnett 2019 Walden University

Adhd And Self-Regulation In The Workplace, Kristine Lynne Barnett

Walden Dissertations and Doctoral Studies

Attention-deficit/hyperactivity disorder (ADHD) diagnosed during childhood can continue into adulthood, but most research on the topic has been done on children and adolescents. This research focus has thus often left out the population of adults with this disorder. In particular, there is little research on the role that self-regulation plays in the lives of adults on several life domains, especially in the workplace. The purpose of this qualitative, phenomenological study was to understand the role that self-regulation plays in the occupational functioning of adults with ADHD. Self-regulation theory provided the tenets that were used to examine how adults with ...


The Lived Experiences Of Emotionally Forgiving Abusive Parents, Chelsea Bryant 2019 Walden University

The Lived Experiences Of Emotionally Forgiving Abusive Parents, Chelsea Bryant

Walden Dissertations and Doctoral Studies

The subject of forgiveness has been heavily explored during the past few decades; however, limited research has been conducted on the phenomenology of emotional forgiveness, the internal process of replacing negative feelings with positive feelings. This study explored the emotional forgiveness experiences of 7 adult men who were previous victims of abuse by their parents. Using Moustakas's phenomenological research approach, the participants were interviewed about their experiences of emotional forgiving their abusive parents. The recall, empathize, altruism, commitment, and holding on, REACH forgiveness model and family systems theory were the conceptual frameworks to explore the central research question, which ...


Recognizing And Anticipating Stress Related Complacent Behavior In Manufacturing Industries, Ricardo Alberto Pineda 2019 Walden University

Recognizing And Anticipating Stress Related Complacent Behavior In Manufacturing Industries, Ricardo Alberto Pineda

Walden Dissertations and Doctoral Studies

Numerous safety studies suggest that stress complacency related accidents in manufacturing industries continue to cause injuries or fatalities because of the absence of emotional resources for leaders, who are unable to prevent accidents when these conditions exist. Leaders of the manufactory industries may not have the appropriate emotional measures which are significant to recognize employees' underlying complacent behavior. The purpose of this quantitative correlational study was to evaluate the relationship between leaders' emotional intelligence resources and their ability to manage to prevent injuries and fatalities in the workplace. The research questions address key traits of emotional intelligence regarding emotional perceptions ...


Training Program Effectiveness In Building Workforce Agility And Resilience, Olya Taran 2019 Walden University

Training Program Effectiveness In Building Workforce Agility And Resilience, Olya Taran

Walden Dissertations and Doctoral Studies

Decades of qualitative case studies suggest that organizations must be able to deal with change effectively to compete and survive. Many researchers have linked higher workforce levels of agility and resilience to organizations' abilities to deal with change more successfully; however, there is a scarcity of empirical research addressing the efficacy of agility and resilience development in the workplace. The purpose of this study was to quantitatively examine the development of workforce resilience and agility, as measured by FIT for Change assessment. The theory of planned behavior was the study's theoretical framework, theorizing that changing attitudes and beliefs about ...


Cronbach's Alpha Under Insufficient Effort Responses: An Analytic Approach, Stephen W. Carden, Trevor R. Camper, Nicholas S. Holtzman 2018 Georgia Southern University

Cronbach's Alpha Under Insufficient Effort Responses: An Analytic Approach, Stephen W. Carden, Trevor R. Camper, Nicholas S. Holtzman

Stephen W. Carden

Surveys commonly suffer from insufficient effort responding (IER). If not accounted for, IER
can cause biases and lead to false conclusions. In particular, Cronbach’s alpha has been empirically
observed to either deflate or inflate due to IER. This paper will elucidate how IER impacts Cronbach’s
alpha in a variety of situations. Previous results concerning internal consistency under mixture
models are extended to obtain a characterization of Cronbach’s alpha in terms of item validities,
average variances, and average covariances. The characterization is then applied to contaminating
distributions representing various types of IER. The discussion will provide commentary on ...


Using Bayesian Multilevel Models To Control For Multiplicity Among Means, Michael J. Zweifel 2018 University of Nebraska-Lincoln

Using Bayesian Multilevel Models To Control For Multiplicity Among Means, Michael J. Zweifel

Public Access Theses and Dissertations from the College of Education and Human Sciences

It is well known that the Type I error rate will exceed α when multiple hypothesis tests are conducted simultaneously. This is known as Type I error inflation. The probability of committing a Type I error grows monotonically as the number as the number of hypothesis being tested increases. A class of methods, known as multiple comparison procedures, has been developed to combat this issue. However, in turn for maintaining the Type I error rate below α, multiple comparison procedures sacrifice power to correctly reject false hypotheses. The loss of power is exacerbated when variance heterogeneity is present.

In the ...


Employee Perceptions Of Well-Being Programs, Alice V. Edwards, Susan Marcus 2018 Walden University

Employee Perceptions Of Well-Being Programs, Alice V. Edwards, Susan Marcus

Journal of Social, Behavioral, and Health Sciences

Measuring the effectiveness of well-being programs in the workplace is important for optimizing the return on investment and selection of programs that meet organizational objectives. A pilot study was performed to assess employee well-being using the Happiness Mini-Survey and a one-sample pre–post study design intended to quickly allow employees to subjectively rate their well-being before and after participating in various classes as part of a well-being program. The findings demonstrated statistical significance in employee subjective ratings; they reported feeling better emotionally, physically, and mentally after participating in the classes. The employees’ self-rating for stress level also had statistically significant ...


The Role Of Meaning-Making In Posttraumatic Growth Among Eritrean Refugees With Posttraumatic Stress Disorder, Yacob Tewolde Tekie 2018 University of Tennessee, Knoxville

The Role Of Meaning-Making In Posttraumatic Growth Among Eritrean Refugees With Posttraumatic Stress Disorder, Yacob Tewolde Tekie

Doctoral Dissertations

The study examined the moderating role of meaning made, meaning making and social support on the relationship between negative life events and posttraumatic stress disorder (PTSD), anxiety and depression as well as the facilitating role of these moderating variables for posttraumatic growth(PTG). Eritrean refugees (N = 135) who were residing in Europe were recruited. The results showed that post-migration living difficulties significantly related with negative outcomes. In addition, the results showed that social support moderated the relationship between the number of traumatic life events and anxiety symptoms. However, meaning made and social support were not significant moderators on the relationship ...


Using Context Specific Measures Of Maximizing Tendency To Reduce Inconsistency In Findings, Thomas Holzhauer 2018 Illinois State University

Using Context Specific Measures Of Maximizing Tendency To Reduce Inconsistency In Findings, Thomas Holzhauer

Theses and Dissertations

The relation between maximizing tendency, the tendency to search for alternatives to make the highest quality decision, and its theorized outcome, regret, has mixed support in previous maximizing tendency literature. In the current study, it was hypothesized that measuring maximizing tendency in different contexts, as opposed to measuring maximizing tendency globally, could reduce this inconsistency. This hypothesis was tested by administering measures of maximizing tendency from different contexts and maximizing tendency without context and using the results in hypothesized models. The models were tested using confirmatory factor analysis, structural equation modeling, and path analysis. Results showed that using context specific ...


A Comparison Of Alternative Bias-Corrections In The Bias-Corrected Bootstrap Test Of Mediation, Donna Chen 2018 University of Nebraska-Lincoln

A Comparison Of Alternative Bias-Corrections In The Bias-Corrected Bootstrap Test Of Mediation, Donna Chen

Public Access Theses and Dissertations from the College of Education and Human Sciences

Although the bias-corrected (BC) bootstrap is an oft recommended method for obtaining more powerful confidence intervals in mediation analysis, it has also been found to have elevated Type I error rates in conditions with small sample sizes. Given that the BC bootstrap is used most often in studies with low power due to small sample size, the focus of this study is to consider alternative measures of bias that will reduce the elevated Type I error rate without reducing power. The alternatives examined fall under two categories: bias correction and transformation. Although the bias correction methods did not significantly decrease ...


Applying Conditional Distributions To Individuals: Using Latent Variable Models, Feng Ji 2018 Illinois State University

Applying Conditional Distributions To Individuals: Using Latent Variable Models, Feng Ji

Theses and Dissertations

This study proposes a new method to interpret individual results of psychological test batteries. The Mahalanobis distance is a commonly-used measure of how unusual an individual’s profile of scores is compared to a population of score profiles. In models in which there is a set of predictors and a set of dependent variables (e.g., cognitive abilities predicting academic abilities), it is useful to distinguish between a profile of dependent scores that is unusual because its profile of predictor scores is unusual and a profile of dependent scores that is unusual even after controlling for the predictors. The conditional ...


Internalizing Outcomes Of Self-Objectification As Predictors Of Behavior In Sexual Situations, Kyla Marie Cary 2018 Illinois State University

Internalizing Outcomes Of Self-Objectification As Predictors Of Behavior In Sexual Situations, Kyla Marie Cary

Theses and Dissertations

The purpose of the current study was to examine various outcomes of self-objectification by creating latent variables encompassing several outcomes. Self-objectification was expected to predict self-surveillance, the behavioral manifestation of self-objectification. Self-surveillance was then expected to predict a latent variable termed internalizing states which encompassed: body shame, appearance anxiety, and sexual self-esteem. Finally, the latent variable of internalizing states was expected to predict a latent variable termed behavior in sexual situations which encompassed: sexual assertiveness, control over sexual encounters, and risky sexual behavior. The participants were 383 undergraduate women between the ages of 18 and 25. The majority of participants ...


Measuring Symmetry In Real-World Scenes Using Derivatives Of The Medial Axis Radius Function, Morteza Rezanejad, John D. Wilder, Kaleem Siddiqi, Sven Dickinson, Allan Jepson, Dirk B. Walther 2018 McGill University

Measuring Symmetry In Real-World Scenes Using Derivatives Of The Medial Axis Radius Function, Morteza Rezanejad, John D. Wilder, Kaleem Siddiqi, Sven Dickinson, Allan Jepson, Dirk B. Walther

MODVIS Workshop

Symmetry has been shown to be an important principle that guides the grouping of scene information. Previously, we have described a method for measuring the local, ribbon symmetry content of line-drawings of real-world scenes (Rezanejad, et al., MODVIS 2017), and we demonstrated that this information has important behavioral consequences (Wilder, et al., MODIVS 2017). Here, we describe a continuous, local version of the symmetry measure, that allows for both ribbon and taper symmetry to be captured. Our original method looked at the difference in the radius between successive maximal discs along a symmetric axis. The number of radii differences in ...


Global Estimation Of Signed 3d Surface Tilt From Natural Images, Seha Kim, Johannes Burge 2018 University of Pennsylvania

Global Estimation Of Signed 3d Surface Tilt From Natural Images, Seha Kim, Johannes Burge

MODVIS Workshop

The ability of human visual systems to estimate 3D surface orientation from 2D retinal images is critical. But the computation to calculate 3D orientation in real-world scenes is not fully understood. A Bayes optimal model grounded in natural statistics has explained 3D surface tilt estimation of human observers in natural scenes (Kim and Burge, 2018). However, the model is limited because it estimates only unsigned tilt (tilt modulo 180deg). We extend the model to predict signed tilt estimates and compared with human signed estimates. The model takes image pixels as input and produces optimal estimates of tilt as output, using ...


Discovery Of Activities Via Statistical Clustering Of Fixation Patterns, Jeffrey B. Mulligan 2018 NASA Ames Research Center

Discovery Of Activities Via Statistical Clustering Of Fixation Patterns, Jeffrey B. Mulligan

MODVIS Workshop

No abstract provided.


Model Misspecification And Assumption Violations With The Linear Mixed Model: A Meta-Analysis, Brandon LeBeau, Yoon Ah Song, Wei Cheng Liu 2018 University of Iowa

Model Misspecification And Assumption Violations With The Linear Mixed Model: A Meta-Analysis, Brandon Lebeau, Yoon Ah Song, Wei Cheng Liu

Department of Psychological and Quantitative Foundations Publications

This meta analysis attempts to synthesize the Monte Carlo literature for the linear mixed model under a longitudinal framework. The empirical type I error rate will serve as the effect size and Monte Carlo simulation conditions will be coded to serve as moderator variables. The type I error rate for the fixed and random effects will be explored as the primary dependent variable. Effect sizes were coded from 13 studies, resulting in a total of 4,002 and 621 effect sizes for fixed and random effects. Meta-regression and proportional odds models were used to explore variation in the empirical type ...


Misspecification Of The Random Effect Structure: Implications For The Linear Mixed Model, Brandon LeBeau 2018 University of Iowa

Misspecification Of The Random Effect Structure: Implications For The Linear Mixed Model, Brandon Lebeau

Department of Psychological and Quantitative Foundations Publications

The linear mixed model is a commonly used model for longitudinal or nested data due to its ability to account for the dependency of nested data. Researchers typically rely on the random effects to adequately account for the dependency due to correlated data, however serial correlation can also be used. If the random effect structure is misspecified (perhaps due to convergence problems), can the addition of serial correlation overcome this misspecification and allow for unbiased estimation and accurate inferences? This study explored this question with a simulation. Simulation results show that the fixed effects are unbiased, however inflation of the ...


Assessing The Ordinality Of Response Bias With Item Response Models: A Case Study Using The Phq-9, Venessa N. Singhroy 2018 The Graduate Center, City University of New York

Assessing The Ordinality Of Response Bias With Item Response Models: A Case Study Using The Phq-9, Venessa N. Singhroy

All Dissertations, Theses, and Capstone Projects

Improper scale usage in psychological and clinical assessment is an important problem. If respondents do not use the scales in a consistent manner, the reliability of a composite is likely to be attenuated. This is particularly problematic when particular items are singled out for special treatment or when subscales are of interest, not just a total score. This study used both non-parametric and parametric item response theory (IRT) methods to gain further insight into the validity of the PHQ-9, a dual purpose instrument that assesses the severity of depressive symptoms using nine Likert-scale items and allows the investigator to establish ...


Systems Of Quantity Judgment In Various Species: A Meta-Analysis, Tiffany A. Woodard Baker 2018 University of Southern Mississippi

Systems Of Quantity Judgment In Various Species: A Meta-Analysis, Tiffany A. Woodard Baker

Dissertations

An abundance of behavioral and neuroimaging literature supports the presence of two cognitive systems for quantity judgments (Agrillo & Bisazza, 2014). In particular, small quantities are thought to be guided by the object-file system, a precise system that uses mental files to map onto real world objects, and large quantities by the approximate number system, an imprecise, estimation system (Dehaene, 1997). Evidence supporting both systems exists in a variety of species including nonhuman primates (Boysen & Hallberg, 2000), birds (Garland, Low, & Burns, 2012), amphibians (Uller, Jaeger, Guidry, & Martin, 2003), and fish (Agrillo, Dadda, Serena, Bisazza, 2009), but support may depend on species ...


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