Integrating problem- and project-based learning opportunities: assessing outcomes of a field course in environment and sustainability

Improving student competencies to address sustainability challenges has been a subject of significant debate in higher education. Problem- and project-based learning have been widely celebrated as course models that support the development of sustainability competencies. This paper describes a course developed for a professional Master’s program in environment and sustainability that employs such a model. Additionally, the course was designed to offer value-added opportunities by introducing attributes of interdisciplinary training, service learning, academic research, and professional practice. Results from the course assessments by students, faculty, community clients and organizational partners show this model provided a range of learning, professional and practical outcomes for course partners. The value-added benefits include strengthening sustainability competencies and professional skills for students; longitudinal research opportunities for teaching faculty; real-time assessments of farming practices for community clients; and a heightened regional profile for the non-profit biosphere reserve organization supporting course delivery.     

Stakeholder Identification of Barriers and Facilitators to Sexual Health Education for Female Survivors of Violence: A Mixed Methods Study

There is a strong relationship between experiencing violence and participating in behaviors that increase the risk of contracting sexually transmitted infections. Sexual health education (SHE) tailored to the unique needs of female survivors of violence is needed. This paper presents findings from 40 surveys and 33 accompanying interviews with stakeholders representing 31 agencies in the violence advocacy community in Arkansas to investigate the feasibility, acceptability, and perceived need of a SHE program for female survivors of violence. Data also explore the role and preferences of community agencies in the design and implementation of such a program. Interviews with stakeholders revealed three themes: intervention concerns, content, and structure.     

Evaluating the metacognitive awareness inventory using empirical factor-structure evidence

Many scholars agree on the general theoretical structure of metacognition, which is what informed the development of the Metacognitive Awareness Inventory (MAI). Although self-report instruments such as the MAI suffer many threats to validity, they continue to be used in research and practice because of their convenience. With the MAI, studies have varied in the way they calculate scores and in their adherence to the intended theory. In this study, we address these shortcomings and propose modifications in calculating MAI scores. Using confirmatory factor analysis (CFA) and multidimensional random coefficients multinomial logit (MRCML) item-response modeling, we examined how well the intended functioning of the MAI matched the data from 622 undergraduate students. The results support scoring the MAI as two dimensions, knowledge and regulation of cognition, but indicate that the 52-item instrument has poor fit. Using iterative CFA and MRCML models, we tested subsets of items that represent the theory and had good fit. We followed up with tests of between-group and time invariance. The results support the use of a 19-item subset for between-group comparisons, with provisional evidence for its use in longitudinal studies.     

Linking early alert systems and student retention: a survival analysis approach

Higher education institutions are increasingly seeking technological solutions to not only enhance the learning environment but also support students. In this study, we explored the case of an early alert system (EAS) at a regional university engaged in both on-campus and online teaching. Using a total of 16,142 observations captured between 2011 and 2013, we examined the relationship between EAS and the student retention rate. The results indicate that when controlling for demographic, institution, student performance and workload variables, the EAS is able to identify students who have a significantly higher risk of discontinuing from their studies. This implies that early intervention strategies are effective in addressing student retention, and thus an EAS is able to provide actionable information to the student support team.     

The effectiveness of supplemental phonics instruction employing constant time delay instruction for struggling readers

This study examined the provision of supplemental instruction using constant time delay for struggling readers who had fallen behind in developing word‐blending skills. Additionally, the study examined the utility of adding a material reward contingency to the instructional program with a contingency derived from percentile‐shaping procedures. Procedures were compared in a withdrawal design applied across blocks of letters with word blending as the target response. Participants exhibited substantial learning gains when provided constant time delay instruction in phonics skills as compared to baseline demonstrating clear experimental control. Results for the constant time delay plus reward contingency conditions were clearly differentiated from baseline but undifferentiated from the other instructional conditions. The implications of the findings for intervention for struggling readers and future research relevant to more comprehensive reading interventions are discussed.     

Transforming “Ecosystem” from a Scientific Concept into a Teachable Topic: Philosophy and History of Ecology Informs Science Textbook Analysis

This study conducts a textbook analysis in the frame of the following working hypothesis: The transformation of scientific knowledge into school knowledge is expected to reproduce the problems encountered with the scientific knowledge itself or generate additional problems, which may both induce misconceptions in textbook users. Specifically, we describe four epistemological problems associated with how the concept of “ecosystem” is elaborated within ecological science and we examine how each problem is reproduced in the biology textbook utilized by Greek students in the 12th grade and the resulting teacher and student misunderstandings that may occur. Our research demonstrates that the authors of the textbook address these problems by appealing simultaneously to holistic and reductionist ideas. This results in a meaningless and confused depiction of “ecosystem” and may provoke many serious misconceptions on the part of textbook users, for example, that an ecosystem is a system that can be applied to every set of interrelated ecological objects irrespective of the organizational level to which these entities belong or how these entities are related to each other. The implications of these phenomena for science education research are discussed from a perspective that stresses the role of background assumptions in the understanding of declarative knowledge.     

Three Kinds of Political Engagement for Philosophy of Science

In responding to critics and reviewers of my book, How the Cold War Transformed Philosophy of Science, I attempt to identify some misleading conventional wisdom about the place of values in philosophy of science and then offer three distinct ways in which philosophers of science can engage their work with ongoing social and political currents.

与火山为邻

地球上已知活火山约500余座,主要都出现于地壳断裂带.印度尼西亚就位处地球物理学的雷区--环太平洋地震带上.这个国家由17508个大小岛屿组成,却拥有约129座活火山.