Validity of proximity sensor-based wear-time detection using the ActiGraph GT9X

Our study investigated the performance of proximity sensor-based wear-time detection using the GT9X under laboratory and free-living settings. Fifty-two volunteers (23.2 ± 3.8 y; 23.2 ± 3.7 kg/m²) participated in either a laboratory or free-living protocol. Lab participants wore and removed a wrist-worn GT9X on 3–5 occasions during a 3-hour directly observed activity protocol. The 2-day free-living protocol used an independent temperature sensor and self-report as the reference to determine if wrist and hip-worn GT9X accurately determined wear (i.e., sensitivity) and non-wear (i.e., specificity). Free-living estimates of wear/non-wear were also compared to Troiano 2007 and Choi 2012 wear/non-wear algorithms. In lab, sensitivity and specificity of the wrist-worn GT9X in detecting total minutes of wear-on and off was 93% and 49%, respectively. The GT9X detected wear-off more often than wear-on, but with a greater margin of error (4.8 ± 11.6 vs. 1.4 ± 1.4 min). In the free-living protocol, wrist and hip-worn GT9X’s yielded sensitivity and specificity of 72 and 90% and 84 and 92%, respectively. GT9X estimations had inferior sensitivity but superior specificity to Troiano 2007 and Choi 2012 algorithms. Due to inaccuracies, it may not be advisable to singularly use the proximity-sensor-based wear-time detection method to detect wear-time.     

Key Authors in Business and Management Education Research: Productivity,Topics, and Future Directions

Previous studies of author productivity in business and management education (BME) research have focused on single disciplinary areas, and even single journals. This study is the first to examine the productivity of BME scholars across multiple disciplinary areas (i.e., accounting, economics, finance, information systems, management, marketing, and operations/supply chain management). We analyzed a pool of 17 BME journals with the highest hg‐index, by including the top three journals in the accounting and information systems areas, the top two journals in each of the other disciplinary areas, and an interdisciplinary BME journal. This examination covered a 10‐year period (2005‐2014), 4,464 articles and 9,617 article co‐authors. We identified 7,209 unique authors in this pool and ranked their productivity to create a “Key Authors” list. Each of the top 99 authors had five or more articles in our database. Our findings indicate the potential for cross‐disciplinary dissemination of research ideas and opportunities for scholars to enhance their research profile, because even a small increase in productivity can lead to substantial movement in the BME rankings of authors.     

Transferability of norms and its implication in cross-cultural gifted education: norming Naglieri Nonverbal Ability Test (NNAT) in the Philippine public schools

This is a normative study to investigate the transferability of norms from western-based intelligence tests to Filipino students. More than 2,700 Filipino sixth graders were sampled across the country and administered the Naglieri Nonverbal Ability Test (NNAT). Scores were then compared to the US normative sample. The results showed no significant differences in mean scores and the standardized mean difference is small when scaled scores are used in comparison. However, in situations where the test needs to be used for specific portions of the population such as in the context of gifted education, further analysis revealed that the distribution of scores for the Philippine sample differed significantly from the expected values based on the US norms, particularly in the tail ends of the distribution. In these cases, it may not be valid to transfer the US norms directly to Filipino students without any modification.     

Driving toward disability rhetorics: narrative,crip theory,and eco-ability in Mad Max: Fury Road

We argue that the film Mad Max: Fury Road challenges stigmas associated with disability by conceptualizing a world that embraces the differences between disabled and abled bodies. Drawing on crip theory and eco-ability scholarship, we examine how Mad Max: Fury Road’s narrative criticizes normative and ableist understandings about the body by imagining a world that constructs accessible and valued spaces for the disabled. Dolmage [Dolmage, J. (2013). Disability Rhetoric. New York: Syracuse University Press] argues that scholars need to situate rhetoric on the experiences of disabled bodies to generate new meanings about disability. Mad Max: Fury Road generates such meanings by challenging normative and stigmatizing conceptions of disability through positive and nuanced representations of disabled bodies.     

Dartmouth's College Course I

Abstract

This article describes the background, activities, and outcomes of the Advanced Technology Environmental Education Center and its Summer Fellows Institute as a model for disciplinary and cross-disciplinary infusion of environmental science and technology content, curriculum, and methods into the classroom. The authors describe experiences, themes, and activities that occurred during 5 years at the Summer Institute for some of the nation's top high school and community college teachers.