Education Commons^™

Nonparametric Tests Of Interaction For The Two-Way Design With Skewed Distributions, Michael Ethan Hornsby Brown

Theses and Dissertations

The most common parametric procedure used to test main and interaction effects in the two- or more-groups factorial design is the analysis of variance (ANOVA) F test. Researchers in the behavioral and social sciences fields require statistical methods that are robust in the presence of deviations from the common parametric ANOVA assumptions of (a) normality, (b) homogeneity of variances among groups, and (c) independence of observations. When there is concern that the parametric assumptions are violated, nonparametric procedures can be employed that do not make as many initial assumptions about the parent populations. Of particular interest in the two-factor design …

Examining Recommended Strategies For Accommodating Negatively Worded Items, Jungsun Go

Theses and Dissertations

The purpose of this study was to investigate the effectiveness of four different models (bifactor, CTC(M-1), CTCU and unidimensional) as to optimal model selection when the wording effect associated with negatively worded items was present. A Monte Carlo simulation study was conducted to compare model-data fit and accuracy in parameter estimates of the four models. Design factors include: two true models (CTC(M-1), CTCU models) × three sample sizes (small N=250, moderate N=500, large N=1,000) × two item ratios (positive items:negative items = 2:1 or 1:1) × three distributions (distribution of negative items; symmetric, moderately asymmetric, and extremely asymmetric). The generated …

The Hero Within: Developing The Psychological Capital Of First-Generation Students, Mary Elizabeth Sewell

Theses and Dissertations

Psychological capital (PsyCap) is a higher-order construct comprised of four psychological resources: hope, efficacy, resilience, and optimism (HERO), and has been linked to academic achievement and engagement (Hazan Liran & Miller, 2019; Luthans, et al., 2012). Interventions designed to build PsyCap may be particularly helpful for firstgeneration (FG) students who face additional challenges in higher education. This study aimed to: (1) explore differences in PsyCap among FG and continuing generation (CG) students; (2) investigate relationships between PsyCap, GPA, and persistence; and (3) examine the impact of a 2-hour PsyCap micro-intervention (PCI) on FG students’ academic PsyCap, academic achievement (GPA), and …

Identifying Attributions And Predictors Of High School Dropout In Rural Youth: A Mixed Methods Approach, Karla Swayngim Reed

Theses and Dissertations

Graduating high school is an important educational milestone that is related to better life outcomes; however, high school dropout remains an issue in the United States (US). This mixed methods study began with a qualitative stage using attribution theory to identify the factors rural youth perceive as responsible for their decision to drop out of high school. Focus groups were conducted with youth from a rural area in South Carolina (SC). Seven themes were identified across the two categories of Internal and External Focus. Internal Focus themes included: (a) ability/self-efficacy, (b) effort, (c) plans for the future, and (d) other …

An Examination Of Measurement Invariance With A Multi-Group Confirmatory Factor Analysis Approach, Ruiqin Gao

Theses and Dissertations

This multiple-manuscript dissertation explored the measurement invariance (MI) testing with multiple-group confirmatory factor analysis (MG-CFA) approach from different perspectives. Study 1 explored MI from a theoretical perspective by conducting a systematic review study on MI practices in education. The findings of this study indicated inconsistency in MI practices and showcased the limitations of the MI practices conducted by researchers in the field of education. Study 2 examined MI from an empirical perspective by implementing a cultural MI test of Strengths and Difficulties Questionnaires for elementary school students in the United States and China. The study provided a step-by-step demonstration of …

Investigating Bifactor Models And Fit Indices For Unidimensionality: An Illustration With Method Effects Due To Item Wording, Elizabeth A. Leighton

Theses and Dissertations

The use of unidimensional scales that contain both positively and negatively worded items is common in both the educational and psychological fields. However, dimensionality investigations of these instruments often lead to a rejection of the theorized unidimensional model in favor of multidimensional structures, leaving researchers at odds for how best to treat their data. One modeling technique that has gained attention in recent years related to item wording effects is the bifactor model, which specifies a general construct that explains the covariation among all items, and two method factors that explain additional covariation among items with similar wording.

Recent applications …

First-Generation Support: A Mixed-Methods Approach To Understanding Imposter Phenomenon And University Belongingness, Julia Kathryn Hodge

Theses and Dissertations

This longitudinal mixed-methods study examines first-generation students (FGS) from a new angle, using the lens of the imposter phenomenon (IP) and the impact of a support program tailored to this population. The Opportunity Scholars Program (OSP) serves low-income, first-generation in-state students. The program promotes retention for low-income FGS. It is worthwhile to evaluate whether and to what degree such a program affects IP among FGS. At the beginning and end of the fall semester, 99 OSP first-generation students, general FGS, and non-FGS completed surveys on imposter phenomenon, academic self-efficacy, and test anxiety. Following the quantitative measures, 12 first-generation students participated …

Disproportionate Discipline: Race/Ethnic And Gender Disparities In Rates Of Lunch Detentions And Subjectivity In Teachers’ Reasons For Those Punishments, Paul Michael Fram

Theses and Dissertations

The intent of school discipline policies, practices, and procedures is to shape student behavior to create an optimal learning environment for all students. However, school discipline falls short of this goal because it is rife with race/ethnic and gender disparities. These disparities contribute to inequitable academic and life outcomes that plague, in particular, African American children. This dissertation addresses these disparities through a thematic literature review, a quantitative analysis of inequities in rates of lunch detention, and a mixed methods analysis of subjectivity in reasons for lunch detention.

The literature review explains the problematic aspects of school discipline, the racial …

Faculty Perspectives On Assessment And Placement: A Mixed Methods Study Of The Social Validity Of Placement Tests, Multiple Measures Placement, And Guided Self-Placement, Dawn R. Coleman

Theses and Dissertations

Community colleges are under ongoing pressure to increase the success of students placed into developmental courses; while many reforms focus on the length of course sequences, there is also attention on how students are assessed and placed. Studies of these assessment and placement (A&P) methods focus primarily on predictive validity; one aspect of validity that is neglected is social validity, which assesses the extent to which the goals, procedures, and effects of an intervention are socially desirable.

The purpose of this study was to use a social validity framework to explore the perspectives of community college math and English faculty …

An Examination Of Attachment And Aspirations In Diverse Rural Youth: The Role Of Peers And Teachers, Gresi Bonomo Irdam

Theses and Dissertations

This dissertation consists of three studies that examined diverse rural youths’ educational and rural aspirations. These studies have the potential to inform rural communities, educators, and parents by providing novel understandings of how peers and teachers in mathematics and science classrooms influence diverse rural youths’ rural attachment, and aspirations (i.e., educational, rural residential, community, and proximity). Thus, the purpose of this dissertation was to investigate rural teachers and their diverse students from White, African American, Hispanic, and Native American backgrounds. In particular, the studies within this dissertation examine how teachers’ social connectedness to their rural communities relates to their teacher …

Investigating Performance Of Model Fit Indices In Multiple-Group Confirmatory Factor Analysis: Complications With Ordinal Data, Ning Jiang

Theses and Dissertations

The purpose of this study is to evaluate the performance of three commonly used model fit indices when measurement invariance is tested in the context of multiple-group CFA with categorical-ordered data. As applied researchers are increasingly aware of the importance of testing measurement invariance, as well as Likert-type scales are frequently used in the social and behavioral sciences, specific guidelines are in need for establishing measurement invariance using model fit indices.

To achieve the study goal, two Monte Carlo simulation studies were conducted. Study 1 investigated the sampling variability of fit indices under different levels of invariance tests. Based on …

Null Hypothesis Statistical Testing: A Survey Of The History, Critiques, And Alternative Methodologies, Bradley David Rogers

Theses and Dissertations

Considered normative from the second half of the 20th century (Danziger, 1990), null hypothesis statistical testing (NHST) has received consistent, largely unheeded criticism. Critiques have received more attention in recent years with the recognition of the replication crisis in the social sciences and the American Statistical Society’s statement and special issue on p values (Wasserstein & Lazar, 2016; Wasserstein et al., 2019). This paper seeks to provide a framework for understanding the issue by looking at the history of NHST and investigating some alternatives to the methodology. A brief review of the history, spread, and critiques of NHST is provided …

High School Students’ Math And Science Motivation Profiles: Stability And Relationship With Their Stem Career Aspirations, Jiali Zheng

Theses and Dissertations

Motivation to study mathematics and science is an important influencing factor of career aspirations in STEM fields which predicts STEM major choice in college and STEM careers after graduation. Using restricted data from a nationally representative sample HSLS:09, the current study identified U.S. high school students’ motivation profiles in mathematics and science courses in 9^th and 11^th grade, examined the stability of these profiles across the two time points, and studied the association between 11^th grade motivation profiles and STEM career aspirations. Differences between male and female students in motivation profiles, profile stability and career aspirations were …

Evaluating Fit Indices In A Multilevel Latent Growth Model With Unbalanced Design: A Monte Carlo Study, Fan Pan

Theses and Dissertations

This dissertation informed researchers about the performance of different levelspecific and target-specific model fit indices in Multilevel Latent Growth Model (MLGM) using unbalanced design and different trajectories. As the use of MLGMs is a relatively new field, this study helped further the field by informing researchers interested in using various specific model fit indices.

We evaluated the descriptive information of the various model fit indices under various simulation conditions and the extent to which the fit indices could be influenced by different design factors, based on simulated data with different conditions derived from a correctly specified MLGM. Our simulation design …

Advancing Research Methodology And Educational Policy: An Application Of Mixture Modeling Using School Climate, Kathleen V. Mcgrath

Theses and Dissertations

School climate is a well-studied issue in educational research. However, surveys of school climate tend to be analyzed using item-centered as opposed to person-centered methods. The current study evaluated the 2018 South Carolina School Climate Survey using advanced applications of mixture modeling in an attempt to identify latent profiles at the student and school levels. The relatively new manual BCH 3-Step approach was applied given its usefulness in analyzing multilevel data with covariates and distal outcomes. However, its application to multilevel mixture models leaves room for advancement and prompted the adoption of an alternative analysis plan that included separate analyses …

How Can I Help? Investigating The Role Of Social Supports In Academic Resilience For Undergraduate Students, Grace M. Lady

Senior Theses

Academic resilience refers to a student’s ability to emotionally and cognitively adapt to academic adversity, including transitions to new experiences like college. This ability to bounce back is an important characteristic for academic success (Robbins et al., 2018; Hodge et al., 2017). Within the literature, there is a need to understand more interpersonal influences, such as social support, on resilience. Therefore, this study aimed to investigate what social support students rely on and how students use social support through times of academic difficulty, particularly during the COVID-19 pandemic and the transition to college. Undergraduate students (N = 189) completed a …

A Unified Approach To Estimating The Intraclass Correlation Coefficient And Its Bias: An Exploratory Study, Kelvin Terrell Pompey

Theses and Dissertations

Many methods are used to measure interrater reliability for studies where each target receives ratings by a different set of judges. The purpose of this study is to explore the use of hierarchical linear modeling for estimating interrater reliability using the intraclass correlation coefficient. This study provides a description of how the ICC can be estimated using hierarchical linear modeling, recommends an appropriate non-parametric bootstrapping method, illustrates how both can be implemented to obtain a point estimate and an estimate of bias, and explores the viability of using these statistical tools to obtain such estimates. Results indicated that hierarchical linear …

A Mixed Methods Study Of Student Learning Objectives (Slos) In Evaluating Teacher Effectiveness, Xumei Fan

Theses and Dissertations

Student Learning Objectives (SLOs), as a measure of students’ academic growth, have been broadly used in the evaluation of teacher effectiveness. In this research I employed a mixed-methods sequential explanatory design and incorporated four studies to investigate using SLOs in teacher evaluation in South Carolina (SC). For Study 1 and Study 2, I used surveys to explore educators’ perspectives of SLOs before and after the full implementation of the teacher evaluation system in SC. For Study 3, I used interviews with teachers to explore in-depth the impact and implementation of SLOs. In Study 4, I investigated the relationship between teachers’ …

Investigating Accuracy Of Model Fit Indices In Multilevel Confirmatory Factor Analysis, Mihaela C. Ene

Theses and Dissertations

This study examined the performance of various model fit indices in the context of multilevel confirmatory factor analysis (MCFA) to determine their robustness in this framework. As the interest in using MCFA techniques recently increased, applied researchers continue to face the challenge of evaluating model fit in this framework as no specific guidelines currently exist.

Using a simulation study with a two-level CFA model, characteristics of the model were varied to reflect a broad range of conditions commonly found in applied studies. Five factors were manipulated, including item-level ICC, level-1 sample size, level-2 sample size, model size, and model misspecification. …

A Rasch Investigation Of Type I Error Rates And Power Associated With Item Fit Statistics Under Large-Scale Testing Situations, Yin Burgess

Theses and Dissertations

This simulation study investigated the accuracy of the mean square and the standardized values of the item INFIT and OUTFIT statistics (i.e., based on total item fit) in Rasch dichotomous model under large-scale testing situations. It also examined their associated Type I error rates to determine how the rule-of-thumb critical values perform in detecting item misfit. Furthermore, simulated systematic measurement disturbances were used to test the power (i.e., the hit rates of true positive cases, true positive rates) and the false positive rates (i.e., Type I error rates) of the obtained values through between-item fit indices in identifying poor-fitting items. …

Achievement Motivation In Emerging Adulthood: An Examination Of Overparenting, Need Satisfaction And Frustration, And Goal Complexes, Erin D. Turner Carson

Theses and Dissertations

In recent years, helicopter parenting, or overparenting, has become an increasing concern on college campuses. Research has linked overparenting to a variety of maladaptive characteristics and outcomes among emerging adults, but little is known about how overparenting predicts achievement goals. This study used an integrated framework of self-determination theory (SDT) and the hierarchical model of achievement motivation from the achievement goal approach (AGA) to examine how overparenting and the basic psychological needs of autonomy, competence, and relatedness predict the endorsement of achievement goal complexes. Participants were 176 emerging adult college students who completed an online survey. Data were analyzed using …

Regression Mixture Models: An Investigation Of The Effects Of Mixing Weights And Predictor Distributions, Phillip Sherlock

Theses and Dissertations

This study focused on understanding how several data characteristics associated with the investigation of effect heterogeneity (i.e., mixing weights, predictor distributions, and the inclusion of covariates) affected enumeration and parameter recovery with regression mixture models. The inclusion of C on X paths, where the latent class, C, is regressed on the predictor, X, allows predictor means to vary across classes, at two points in the model building process—during and after enumeration—was of interest. This main aim was accomplished by comparing the correct enumeration rates and parameter coverage rates with and without freely estimated predictor means across classes for models with …

Teacher Attunement To Bullies And Victims: Effects On Percpetion Of Bullying, Social-Emotional Well-Being And Academic Outcomes, Lauren Elaine Mcguire

Theses and Dissertations

With students spending so much of their time in schools, and bullying negatively affecting many students in a multitude of ways, this study examined the relationship between teacher attunement during the fall term of the students sixth-grade year, to academic competence through the way students perceive the bullying ecology within their school, and how the students report their social-emotional well-being. This study used structural equation modeling in order to assess the relationship between these variables with a subsample of student and school data from twenty schools that participated in the Rural Early Adolescent Learning (REAL) project. The results demonstrated how …

Academic Motivation Profiles Of 10th Grade Students: Exploring A Relationship With Socioeconomic Level Using A Person Oriented Approach, Sandra Lynn Rogelberg

Theses and Dissertations

Motivation is an important predictor of educational success, as is socioeconomic status. This study used Expectancy Value Theory (EVT) and a person oriented approach as the framework to explore how motivation profiles may be related to context, namely socioeconomic status (SES), and the roles these profiles have in predicting education outcomes. Five motivation variables: math self-efficacy, reading self-efficacy, control expectation, action control, and utility value (instrumentation motivation) were used in latent profile analysis to determine four latent motivation profiles from a national sample of 10,981 10th grade students using ELS:2002 data. Family income and education level (SES) were considered a …

Integrating Self-Determination And Expectancy-Value Theories In Examining The Achievement Of First-Generation College Students: A Latent Profile Analysis Examining Relations Between Perceived Choice, School Valuing, And Perceived Competence And Academic Achievement, Angela Starrett

Theses and Dissertations

First-generation students, who represent more than 40% of entering college freshmen, have lower academic achievement and struggle to persist compared to their continuing-generation peers. Although previous studies have repeatedly shown a deficit model for first-generation students, there is still a lack of clear understanding about the heterogeneity that exists among these college students. While some do struggle to persist, others show marked resilience. Thus, drawing on Self-Determination Theory and Expectancy-Value Theory, this short-term longitudinal study examined whether perceived competence, perceived choice, and positive school value could moderate the risk of being a first-generation college student. A latent profile analysis on …

The Influence Of Testing And Content Presentation Method On Mandatory Federal Employee Training, Corey Patrick Boswell

Theses and Dissertations

A substantial amount of evidence exists suggesting that including tests as part of learning events can promote greater long-term retention (known as the “testing effect”). In the current study, the testing effect was analyzed in the context of mandatory federal legal training. The classic information processing perspective provided a theoretical backdrop for the experimental design. Participants (N = 383) received specialized training content through one of three modalities (text-, audio-, or video-based). Additionally, instructional style (test vs. no-test) was manipulated in conjunction with content presentation method. It was predicted that participants would perform better on the final assessment in conditions …

Student Involvement As A Mediator Of The Relationship Of Peer Leaders In First-Year Seminars To Academic Achievement And Persistence, Liyun Zhang

Theses and Dissertations

Peer leaders as a component of First-Year Seminars (FYS) are designed to assist in the adjustment, satisfaction and persistence of first-year college students. Although previous studies have consistently found the positive and direct impact of peer leaders on first-year students’ academic achievement and persistence, there is still a lack of clear understanding on why peer leaders have this positive relationship with students’ academic achievement and persistence. Thus, drawing on Astin’s theory of student involvement for higher education (1984, 1993, 1996), and Tinto’s interactive theory of departure (1993), this short term longitudinal study examined the process through which peer leaders resulted …

The Impact Of The Choice Of The Item Response Theory Model Used In The Analysis Of Student Response Data From Statewide Educational Assessments, Maureen O’Gorman Petkewich

Theses and Dissertations

The practical significance of the item response theory model (IRT) choice on the results of a statewide assessment was investigated at multiple decision making levels: the examinee level, school and district summary levels, and in terms of impact to subgroups. Data for the study included the student response matrix for South Carolina’s 2014 Palmetto Assessment of State Standards (PASS). The Rasch model, used with PASS and in nearly half of PASS-like multiple-choice statewide assessments in other states, was compared to another popular IRT model used in similar statewide assessments: the 3PL model.

Model fit checks indicated that the 3PL had …

The Relationship Between Peer-Self Concept And Academic Self-Concept In Elementary Students: A Person-Oriented Perspective, Catherine Jorgensen Snyder

Theses and Dissertations

Self-concept is one of the most researched constructs in educational psychology (Marsh, Xu, & Martin, 2012). It has been established that there are different domains of self-concept which fall into two main categories, academic and non-academic (Shavelson, Hubner, & Stanton, 1976). Unfortunately, little research has been conducted on the non-academic areas of self-concept and little is known about how social self-concept interrelates with academic self-concept. The focus of this study was to contribute to the research base by investigating the relationship between a facet of nonacademic self-concept, namely peer self-concept, and achievement self-concept among elementary students.

The current research utilized …

Empirical Connections Between The Construct Of Value, The Quality Of Stability, And The Construct Of Regret, William Samuel Morris Jr.

Theses and Dissertations

The term value is a psychological construct frequently used in the social sciences. This research addresses the issue of stability of ratings of perceived value of participants for monetary, tangible, and intangible items that cross contexts. Also elucidated is the relationship of value to regret. Hypothesis one stated that value would be stable across time and different rating conditions. Forty-four participants rated the value of 72 stimulus items at two time points and in different contexts. Paired samples t-tests indicated 28 participants had no statistical difference in scores. Twenty-eight scores out of 44, when applied to a binomial test, indicates …