The current study involved the development, scaling, and validation of a new, brief, strength-based measure of children's ecological support, as rated by their parents. The scaling and validation of the Child and Youth Ecological Assets Scale--Parent Form (C-YEAS-P) took place through two studies. The first study involved 500 parents who were…

Validity in psychometrics refers to the degree to which evidence and theory supports the interpretations drawn from a test, and Messick's Contemporary Validity Theory (1994) includes several facets with well-established evidence collection methods. However, there is a lack of consensus on appropriate methods of evaluating the facet of…

In many psychological and educational applications, it is imperative to obtain valid and reliable score estimates of multilevel processes. For example, in order to assess the quality and characteristics of high impact learning processes, one must compute accurate scores representative of student- and classroom-level constructs. Currently, there…

Recent advancements in testing differential item functioning (DIF) have greatly relaxed restrictions made by the conventional multiple group item response theory (IRT) model with respect to the number of grouping variables and the assumption of predefined DIF-free anchor items. The application of the L[subscript 1] penalty in DIF detection has…

Twice exceptional (2e) students are a unique population of students, who present with a wide range of strengths and weaknesses. For this reason, it is important for teachers to be trained and feel prepared to work with these students. Teacher self-efficacy has been shown to influence both student and personal outcomes (e.g. student perceptions of…

The purpose of this study was to determine any relationship between three factors of the TPACK model and the impact of age and gender of foreign language teachers who teach in post-secondary education. The goal was to help instructional designers to develop need-based training for in-service language teaching faculty in higher education.…

There has been some research in the use of propensity scores in the context of measurement error in the confounding variables; one recommended method is to generate estimates of the mis-measured covariate using a latent variable model, and to use those estimates (i.e., factor scores) in place of the covariate. I describe a simulation study…

Measurement invariance is crucial for making valid comparisons across different groups (Kline, 2016; Vandenberg, 2002). To address the challenges associated with invariance testing such as large sample size requirements, the complexity of the model, etc., applied researchers have incorporated parcels. Parcels have been shown to alleviate skewness,…

Science, technology, engineering, and mathematics (STEM) influence almost every aspect of our daily lives. However, despite the high demand for STEM occupational talent, the STEM pipeline continues leaking, with less than one-sixth of high school students pursuing STEM majors and only 50% of entering STEM majors matriculating into STEM fields.…

Nonverbal behavior is essential in human interaction (Gullberg, de Bot, & Volterra, 2008; McNeill, 1992, 2005). For second language speakers, nonverbal features can be helpful for successful and efficient communication (e.g., Dahl & Ludvigsen, 2014). However, due to the complexity of nonverbal features, language testing institutions have…

There is limited recognition of self-determination concept in the Middle Eastern culture. Subsequently, there are no adapted measures of self-determination for Arabic adolescents with intellectual disability, learning disability, and multiple disabilities (intellectual disability and physical impairment). The purpose of this study was to examine…

This dissertation study investigated the relationship of a 1:1 initiative with integrated digital learning teacher professional development and teacher self-efficacy. Proprietary survey data from PivotPoint Business Solutions was used to examine if a relationship existed. Phase 1 data were collected in the fall of 2016, prior to the 1:1…

Consumers spend an increasing amount of time and money online finding information, completing tasks, or making purchases. The quality of the website experience has become a key differentiator for organizations--affecting whether they purchase and their likelihood to return and recommend a website to friends. Two instruments were created to more…

The implementation of the Common Core State Standards (CCSS) has placed increased accountability for outcomes on both students and teachers. To address the current youth literacy crisis in the United States, the CCSS call for students to read increasingly complex informational and literary texts. Since teachers are held accountable for students'…

Mental health screeners need to demonstrate measurement equivalence across the populations of their intended use in order to improve the fairness in the identification of students in need of social, emotional, and behavioral supports. This study examined measurement invariance on three mental screeners across five racial and ethnic groups. The…