Change of first language (L1) status from the most stable language to a less accessible language over the life-span of a bilingual individual is termed "language attrition". Such a shift in ease of L1 access has been reported to affect the lexicon (Pelc, 2001) more than other aspects of language. However, whether L1 attrition is affected by…

Many rural North Dakota communities struggle with the loss of services, schools, and population due to a changing landscape, but does a strong sense of community help anchor residents to their town? The purpose of this study was to describe sense of community and its relationship to actions promoting social capital in rural North Dakota towns.…

Charter schools have been categorized as "everyone's reform" (Bracey, 2004); they are a type of public school, first established in 1992, that normally has fewer restrictions than most public schools and that serves a student body that, in many circumstances, has consciously opted to attend the school. Charter schools have promised high student…

Teacher attrition, particularly of beginning teachers, is concerning. Extensive research has been conducted on teacher attrition and teacher characteristics; however, less research exists on teacher retention and related teacher belief systems. This study examined the beliefs of a particular subset of teachers--teachers who have stayed in the…

Recently, several philosophical and computational approaches to causality have used an interventionist framework to clarify the concept of causality [Spirtes et al., 2000, Pearl, 2000, Woodward, 2005]. The characteristic feature of the interventionist approach is that causal models are potentially useful in predicting the effects of manipulations.…

In a time of growth in secondary education online programs, there have been few studies directed at understanding secondary online programs and the students they serve. That is particularly true for large, inner-city public school districts with a diverse student body. This is a mixed methods case study which identified that students' primary…

Since enactment of the Clinger-Cohen Act in 1996, the median tenure of federal chief information officers (CIOs) has been approximately 2 years and high CIO turnover is a problem (U.S. Government Accountability Office [GAO], 2004). Researchers have conducted little research on what leads to effective performance for government CIOs. This…

This study proposed that when professional development modeled the inquiry-approach and provided time for peer-observed enactment and reflection, it would produce change in in-service chemistry teachers' beliefs and practices. Case study methodology was used to collect a variety of in-depth data on teachers' beliefs and practice including…

Many American citizens have remained outside of the political process and therefore have not been able to effectively advocate for the full rights, privileges and responsibilities that American citizenship makes possible. For youth from historically marginalized populations who are growing up in lower-income urban areas, the issue becomes…

This study compared children's (N=96, mean age 4;1, range 2;8-5;3) and adults. (N=96, mean age 21 years) tolerance of word-onset modifications (e.g., "wabbit" and "warabbit") and pseudo affixes (e.g., "kocat" and "catko") in a label extension task. Trials comprised an introductory phase where children saw a picture of an animal and were told its…

The aims of this research were to 1) examine the qualities for which applicants are selected for entrance into clinical psychology Ph.D. programs, and 2) investigate the prevalence and impact of the mentor-model approach to admissions on multiple domains of programs and the field at large. Fifty Directors of Clinical Training (DCTs) provided data…

Many schools employ coaches to support mathematics instruction and student learning. This research study investigated the roles of coaches from five school districts in Virginia. Participants included 125 elementary mathematics coaches and 59 principals. Results from cross-sectional surveys revealed that most coaches did not have a degree in…

Today's college students are often labeled the "Net Generation" and assumed to be computer savvy and technological minded. Exposure to and use of technologies can increase self-efficacy regarding ability to complete desired computer tasks, but students arrive on campuses unable to pass computer proficiency exams. This is concerning because some…

This dissertation answers three research questions: (1) What are the characteristics of a combinatoric measure, based on the Average Search Length (ASL), that performs the same as a probabilistic version of the ASL?; (2) Does the combinatoric ASL measure produce the same performance result as the one that is obtained by ranking a collection of…

Researchers, politicians, and the public have criticized colleges and universities for not effectively preparing college students to be active participants in their communities and within a democratic society. Institutional initiatives on civic engagement have focused on community service and service-learning initiatives to meet this demand. The…