Psychology Commons^™

Detecting Changes In Auditory Events, Rachael B. Peck

Masters Theses, 2010-2019

Change deafness is defined as the failure to detect the source of an above-threshold change in an auditory scene. A new paradigm recently demonstrated the phenomenon under analogous conditions to its visual counterpart, change blindness (Hall, Peck, Gaston, & Dickerson, 2015). This investigation examined the use of the paradigm through two experiments which involved the same four simultaneously presented events. Experiment 1 distributed events across a virtual 120º on the azimuth while the target event oscillated across a 60º space throughout each trial. Listeners were instructed to identify the target as soon as possible. Target rate of change was manipulated …

Myside Bias In Probabilistic Ethical Decision Making, Richard E. Hohn

Masters Theses, 2010-2019

This study examined the extent to which myside bias was observed in the context of ethical decision making. In judgment and decision making research the resistance of myside bias is described as a component of rational thinking. Thus, to some effect, this study aimed to examine the extent to which people act rationally when making ethical decisions. Measures of thinking dispositions (actively open-minded thinking and need for cognition) as well as measures of cognitive reflection and probabilistic knowledge were included in the study to examine their associations with myside bias in ethical decisions. Modest myside bias effects were observed between …

The Use Of Differential Reinforcement To Increase Participation/Engagement In Children With Autism In An Inclusion Setting, Kayla Gionti

Masters Theses, 2010-2019

Abstract

Children with autism spectrum disorder (ASD) would gain more from instructional material if they increased their participation and engagement in general education classrooms. However, these children often grow dependent on prompts from teachers and paraprofessionals to participate. This can impede the children from participating independently in other settings and from engaging with the instructional material presented to them. The purpose of this study was to increase independent participation, while decreasing the prompt dependency of 3 children with ASD in a general education classroom. The use of differential reinforcement and prompt fading increased the hand raising behavior of all three …

Predicting Bystander Attitudes Using Rape Myth Acceptance And Adherence To The Commodity Model Of Sex, Kimberly J. Johnson

Masters Theses, 2010-2019

The high rate of sexual assault on college campuses has become a growing concern among college administrators. To combat the prevalence of sexual assault, colleges and universities have begun implementing mandatory bystander intervention training programs, which teach students to look for warning signs indicative of sexual assault and intervene before an assault occurs. Previous research has indicated that an individual’s endorsement of rape myths may play a role in whether or not that individual will intervene in a situation that may lead to sexual assault; however, little research has investigated from where beliefs in rape myths might stem. Sex educators …

The Effects Of Ordinal Data On Coefficient Alpha, Kathryn E. Pinder

Masters Theses, 2010-2019

Given coefficient alpha’s wide prevalence as a measure of internal reliability, it is important to know the conditions under which it is an appropriate estimate of reliability. The present paper explores alpha’s assumption of uncorrelated errors when used with ordinal data. Alpha overestimates true reliability when correlated errors are present. In this paper, I use a simulation study to recreate three mechanisms proposed to create correlated errors in ordinal data. The first mechanism, misclassification error, occurs when there are correlated measurement errors present in the data. The second mechanism, grouping error, occurs when there are not enough categories to represent …

Propensity Score Matching In Higher Education Assessment, Heather D. Harris

Masters Theses, 2010-2019

The applied nature of higher education assessment does not lend itself to rigorous experimental research designs. However, assessment practitioners would like to make claims about the influence of educational programs on student learning outcomes. Propensity score matching (PSM) methods are quasi-experimental techniques that allow researchers to control for known confounding variables. In the context of higher education, PSM techniques allow assessment practitioners to control for confounding variables related to students’ self-selected participation in university programs. Research and recommendations on how to apply PSM techniques are scattered throughout several disciplines. However, additional research is needed to evaluate how well PSM techniques …

Persons Can Speak Louder Than Variables: Person-Centered Analyses And The Prediction Of Student Success, Elisabeth M. Pyburn

Masters Theses, 2010-2019

In order to ensure that analyses are appropriate for one’s research question(s), it is important to consider whether a person-centered or variable-centered approach is needed. Person-centered approaches are often not considered in situations for which they would be appropriate. To that end, a description of the characteristics and procedures of two common person-centered analyses (cluster analysis and mixture modeling) are provided. Although both analyses accomplish the same general aim – to group persons based on their similarity on a series of variables, thus providing ease of interpretation – the methods employed for each analysis differ considerably. As illustration, both analyses …

Enhancing Psychology Majors’ Meta-Cognitive Understanding Of Desirable Workplace Skills Using A Short Discussion-Based In-Class Activity, Alena S. Gordienko

Masters Theses, 2010-2019

The skills psychology students possess that employers look for in job applicants include: reliability, integrity, work ethic, communication, technology, critical thinking, teamwork, and professionalism (Rodgers, 2012). I conducted a study to determine whether participating in a brief classroom activity would improve students’ ability to effectively describe their skills. Students were asked to write a cover letter before and after the activity. The activity included a discussion of four skills and student reflection on their experiences that demonstrated these skills. I hypothesized that overall letter-writing would improve, that students’ self-reported levels of preparedness to find a job would improve, that students …

International Distance Coaching Of Therapists To Improve Verbal Behavior By Children With Autism, Ana Barkaia

Masters Theses, 2010-2019

This study examined the effects of distance coaching on the mastery of therapists’ skills and the development of verbal behavior of children with autism. Three therapists and three children receiving early intervention services in the NGO Children of Georgia in the developing country of Georgia-Sakartvelo in Eastern Europe participated in this research. The therapists received distance coaching about the implementation of ABA therapy from Virginia. The intervention was recorded and coded by observers in Georgia-Sakartvelo and in Harrisonburg/Virginia,USA. The effects of distance coaching was investigated within a multiple baseline across participant.

Establishing Conditioned Reinforcers In Children With Autism Spectrum Disorder, Kristen Rollman

Masters Theses, 2010-2019

People with Autism Spectrum Disorder (ASD) often demonstrate restricted, repetitive patterns of behaviors, interests, and activities, often involving preoccupations with one or more stereotyped and restricted patterns of interest and an inability to adjust to changes in daily routines and schedules. Academic achievement and skill acquisition present a challenge in children with ASD, often times due to a lack of reinforcer options resulting from these deficits. The current study examines the use of free-operant stimulus preference assessments, progressive-ratio schedule reinforcer analyses, and a Pavlovian conditioning procedure in order to evaluate the establishment of new reinforcers that may be used to …

Delay Discounting: Are Magnitude Effects Moderated By Domain Effects?, David A. Williams Jr.

Masters Theses, 2010-2019

Delay discounting is a phenomenon wherein a commodity loses its value as the delay to its receipt increases. It may be conceptualized as a measure of patience, or impatience. There are several aspects of a commodity that contribute to its loss in value, in addition to the delay to its receipt. Specifically, there are differential rates in delay discounting across commodity types (domain effects) and commodity amounts (magnitude effects). Interestingly, magnitude effects occur almost exclusively in relation to a particular commodity type: monetary rewards. The present study sought to isolate magnitude effects from a particular quality of monetary rewards: fungibility. …

Traumatic Experiences And Cognition: How Do Static And Dynamic Variables Contribute To Current Functioning?, Cathryn Richmond

Masters Theses, 2010-2019

Approximately 25% of children in the United States will witness or experience a traumatic event before age 4, and individuals with a history of trauma, particularly traumatic events in childhood, have a much higher likelihood of developing psychopathology in adulthood. Prior research indicates that the vast majority of individuals with a serious mental illness, particularly those in community mental health centers and psychiatric inpatient settings, have experienced at least one traumatic event in their lifetime. These individuals require special consideration in treatment planning, and a large range of neurodevelopmental and environmental factors must be taken into account when interpreting results …