Miami University

About: Miami University is a education organization based out in Oxford, Ohio, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 9949 authors who have published 19598 publications receiving 568410 citations. The organization is also known as: Miami of Ohio & Miami-Ohio.

Relationships among school climate domains and school satisfaction

Abstract: This study investigated the magnitude of the relationships between eight school climate domains and a measure of global school satisfaction among 2,049 middle and high school students. Tests of moderator effects were conducted to determine if the magnitude of the relationships between the school climate domains and school satisfaction differed as a function of students’ gender, grade, age, GPA, or SES. Multiple regression analyses suggested that five school climate domains are significantly related to school satisfaction ( p<. 01): Academic Support (beta weight = 0.17), Positive Student-Teacher Relationships (0.12), School Connectedness (0.11), Order and Discipline (0.13), and Academic Satisfaction (0.12). In addition, the importance of the school climate variables to students’ school satisfaction appeared invariant across the demographic variables and academic performance levels. The inclusion of school climate and school satisfaction measures may form a foundation for more comprehensive assessments for understanding and monitoring the experiences of students in schools. C � 2010 Wiley Periodicals, Inc.

Voice amplification versus vocal hygiene instruction for teachers with voice disorders: a treatment outcomes study.

Abstract: Voice problems are common among schoolteachers. This prospective, randomized clinical trial used patient-based treatment outcomes measures combined with acoustic analysis to evaluate the effectiven...

Multiple stressors in amphibian communities: effects of chemical contamination, bullfrogs, and fish.

Abstract: A leading hypothesis of amphibian population declines is that combinations of multiple stressors contribute to declines. We examined the role that chemical contamination, competition, and predation play singly and in combination in aquatic amphibian communities. We exposed larvae of American toads (Bufo americanus), southern leopard frogs (Rana sphenocephala), and spotted salamanders (Ambystoma maculatum) to overwintered bullfrog tadpoles (R. catesbeiana), bluegill sunfish (Lepomis macrochirus), the insecticide carbaryl, and ammonium nitrate fertilizer in 1000-L mesocosms. Most significantly, our study demonstrated that the presence of multiple factors reduced survival of B. americanus and A. maculatum and lengthened larval periods of R. sphenocephala. The presence of bluegill had the largest impact on the community; it eliminated B. americanus and A. maculatum and reduced the abundance of R. sphenocephala. Chemical contaminants had the second strongest effect on the community with the insecticide, reducing A. maculatum abundance by 50% and increasing the mass of anurans (frogs and toads) at metamorphosis; the fertilizer positively influenced time and mass at metamorphosis for both anurans and A. maculatum. Presence of overwintered bullfrogs reduced mass and increased time to metamorphosis of anurans. While both bluegill and overwintered bullfrog tadpoles had negative effects on the amphibian community, they performed better in the presence of one another and in contaminated habitats. Our results indicate that predicting deleterious combinations from single-factor effects may not be straightforward. Our research supports the hypothesis that combinations of factors can negatively impact some amphibian species and could contribute to population declines.

Does Imagery Work? Effects on Performance and Mental Skills

Abstract: This paper provides a review of the literature on the relationship between imagery and sport performance as well as between imagery and the development of mental skills. First, the many anecdotal reports of imagery effectiveness are noted and a definition is provided focusing on the multidimensional nature of imagery. The evidence of the enhancing influence of imagery on sport performance is then examined by looking at the early studies (mental practice), case studies, preparatory imagery, imagery used as part of a mental training package, and the use of imagery by successful athletes. After discussing the limitations in research imagery relating to performance, the focus turned to the relationship of imagery and the development of mental skills (e.g., confidence, dealing with pressure, motivation). Factors affecting imagery effectiveness were highlighted including imagery perspective, type of task, positive versus negative imagery, and timing of imagery. The paper concluded with future directions for research including such areas as amount of time to image, imagery and children, imagery ability, and imagery and performance expertise.