Conceptualizing Continuous Coverage: A Strategic Model for Wall-to-Wall Local Television Weather Broadcasts   总被引：1，自引：0，他引：1  

George L. Daniels - George L. Daniels is Assistant Professor of Journalism  Ginger Miller Loggins is a doctoral student in the College of Communication  Information Sciences at The University of Alabama  Ginger Miller Loggins 《Journal of Applied Communication Research》2007,35(1):48-66

The 2005 hurricane season provided unprecedented opportunities for local television stations to serve the public interest in live, often commercial-free, coverage of severe weather. In this examination of four local television stations' coverage of four Atlantic hurricanes in two Southeastern markets, observed patterns of behavior culminated in the development of the Local Weather Continuous Coverage Model. The study showed that unlike their cable news counterparts, local television news continuous coverage prioritizes weather personnel over live, on-the-scene news reporting. Of all the weather tools used, radar was the most frequently used, followed by watch and warning graphics.  相似文献   

Effects of repeated retention tests on learning a single timing task     

Magnuson CE  Shea JB  Fairbrother JT 《Research quarterly for exercise and sport》2004,75(1):39-46

The purpose of the present study was to investigate the possibility that administering an initial retention test would influence any subsequent retention tests administered to the same participants. Participants performed 40 practice trials of a four-segment key-pressing task with a movement time goal of 925 ms. Participants were then administered either two retention tests (Day 1-Day 1 group, 10 min and 20 min after practice; Day 1-Day 2 group, 10 min and 24 hr after practice; Day 2-Day 2 group, 23 hr 50 min and 24 hr after practice) or one retention test (Day 1-Control group, 20 min after practice; Day 2-Control group, 24 hr after practice). The first test had a deleterious effect on performing the second test for the Day 2-Day 2 group, which would be expected if the task representation was updated and re-encoded at the time of recall using diminished information. This finding suggests that researchers should be cautious about using repeated retention tests that are administered 1 day after practice. In addition, teachers and coaches should consider administering a test under gamelike conditions following practice of a new technique. Otherwise, performance of the new technique may be degraded or perturbed at the time of later performances.  相似文献   

Benefits of self-control in dyad practice     

Wulf G  Clauss A  Shea CH  Whitacre CA 《Research quarterly for exercise and sport》2001,72(3):299-303

  相似文献   

Comparison of Knowledge and Attitudes Using Computer-based and Face-to-Face Personal Hygiene Training Methods in Food Processing Facilities   总被引：1，自引：1，他引：0  

Ginger D. Fenton  Luke F. LaBorde  Rama B. Radhakrishna  J. Lynne Brown  Catherine N. Cutter 《Journal of Food Science Education》2006,5(3):45-50

ABSTRACT:  Computer-based training is increasingly favored by food companies for training workers due to convenience, self-pacing ability, and ease of use. The objectives of this study were to determine if personal hygiene training, offered through a computer-based method, is as effective as a face-to-face method in knowledge acquisition and improved attitude toward food safety. Employees from four food processing facilities ( n = 94) were randomly assigned to a control group, a face-to-face training group, or a computer-based training group. Evaluation instruments consisted of a pretest and a posttest to measure knowledge gain, a step scale to measure attitude after training and retrospectively before training, and a brief set of interview questions. Results for both treatments and the control group indicated increases in knowledge. Analysis of the posttest scores, when controlling for the pretest scores, indicated the difference was significant ( P ≤ 0.05); however, post hoc analysis did not indicate which treatment was superior. There was a significant increase in attitude scores for both groups using paired t -tests, although the difference between groups was not significant when controlling for attitude scores before training. Issues that may limit application of the technology used in this study include low literacy and language barriers among employees, and time constraints within companies. These and other variables should be taken into account in future research studies addressing comparisons of training methods. This study is the first to demonstrate the effectiveness of computer-based training aimed at food handlers who work in food processing establishments.  相似文献   

When forgetting benefits motor retention     

J B Shea  D L Wright 《Research quarterly for exercise and sport》1991,62(3):293-301

Recent research (Lee & Weeks, 1987; Weeks, Lee, & Elliott, 1987) investigating the processes responsible for the contextual interference phenomenon has used a modified short-term motor retention paradigm to support the reconstruction explanation (Lee & Magill, 1985; Magill, 1989; Magill & Hall, 1990). The present experiment was an extension of these experiments in which forgetting of an acquisition task was induced through performance of either a similar or dissimilar distractor task during the intertrial interval. The effects of an extra practice trial with the acquisition task as well as no activity during the intertrial interval were also investigated. In addition, forgetting of the acquisition task was assessed prior to a reconstruction trial, which immediately preceded a 2-min filled retention interval. Both similar and dissimilar distractor tasks caused equivalent amounts of forgetting of the acquisition task prior to the reconstruction trial. However, retention of the acquisition task was significantly improved if its reconstruction occurred following forgetting due to interference from performance of a similar distractor task. These findings suggest forgetting and subsequent reconstruction alone are not sufficient for improved retention. These processes must occur in the context of a similar task for improved retention.  相似文献   

Summary knowledge of results     

C D Gable  C H Shea  D L Wright 《Research quarterly for exercise and sport》1991,62(3):285-292

Summary knowledge of results (KR) involves delaying the presentation of KR until a predetermined number of trials has been completed. Schmidt, Young, Swinnen, and Shapiro (1989) found an optimal summary length of 15 trials (compared to 1, 5, and 10) and Schmidt, Lange, and Young (1990) found an optimum length of 5 trials (compared to 1, 10, and 15) for 1 and 2 kinematic degree of freedom timing tasks, respectively. Experiment 1 was designed to determine the optimal summary length for learning a simple isometric force production task. The results indicated better retention for the 16-trial summary than for 8- or 1-trial summaries. Experiment 2 was an initial attempt to determine the locus of the 16-trial summary effect. Specifically, Experiment 2 focused on the role played by both the information provided in the summary presentations and the practice per se of the first 14 trials in the 16-trial block. The results suggest KR is important to ensure response stability. However, it also appears important to restrict the subject's immediate utilization of KR. This latter requirement may potentially aid the parameterization process, resulting in a reduction in response bias.  相似文献   

Discursive positioning of beginning teachers’ professional learning during induction: a critical literature review from 2004 to 2014     

Geraldine Mooney Simmie  Cathal de Paor  Jennifer Liston  John O’Shea 《Asia-Pacific Journal of Teacher Education》2017,45(5):505-519

This study reports on findings from a critical literature review, from 2004 to 2014, in relation to the positioning of beginning teachers’ professional learning during induction. The study uses theoretical frameworks drawn from competing discourses: an instrumental standpoint based on performativity and a dialectical standpoint based on a transformative view of good teaching as an advanced specialised practice. A critical analysis was conducted, using a systematic literature review that yielded 14 peer-reviewed papers, to discursively position teachers’ professional learning and pinpoint questions for future study. Findings showed that while studies reported positive outcomes they were often atheoretical and framed within narrow chains of logic that neglected important strands, such as, teacher “knowledge-of-practice”. The study raises important questions not only about the positioning of beginning teachers’ professional learning but about meaningful professional learning for all teachers across the continuum of teacher education.  相似文献   

The Effect of Various Factors on Standard Setting     

John J. Norcini  Judy A. Shea  D. Theresa Kanya 《Journal of Educational Measurement》1988,25(1):57-65

This paper reports two studies of standard setting using Angoff's method. Results of the first study suggest that specialization within broad content areas does not affect an expert's estimates of the performance of the borderline group. This is reassuring because the knowledge base of many professions is so large that no individual can be considered an expert in all aspects of it. Results of the second study support the recommendation that performance data be provided during the standard-setting process. They are frequently used by experts, but will not have an impact on the standard unless the distribution of item difficulties is skewed markedly. It also increases the correspondence between p-values and estimates of borderline group performance, thereby reducing errors in pass/fail decisions. Overall, the results support recommendations often made in standard-setting literature, but they need to be replicated with other groups of experts  相似文献   

Climate Change Professional Development: Design,Implementation, and Initial Outcomes on Teacher Learning,Practice, and Student Beliefs     

Nicole A. Shea  Chrystalla Mouza  Andrea Drewes 《Journal of Science Teacher Education》2016,27(3):235-258

In this work, we present the design, implementation, and initial outcomes of the Climate Academy, a hybrid professional development program delivered through a combination of face-to-face and online interactions, intended to prepare formal and informal science teachers (grades 5–16) in teaching about climate change. The Climate Academy was designed around core elements of successful environmental professional development programs and aligned with practices advocated in benchmarked science standards. Data were collected from multiple sources including observations of professional development events, participants’ reflections on their learning, and collection of instructional units designed during the Academy. Data were also collected from a focal case study teacher in a middle school setting. Case study data included classroom observations, teacher interviews, and student beliefs toward climate change. Results indicated that the Climate Academy fostered increased learning among participants of both climate science content and pedagogical strategies for teaching about climate change. Additionally, results indicated that participants applied their new learning in the design of climate change instructional units. Finally, results from the case study indicated positive impacts on student beliefs and greater awareness about climate change. Results have implications for the design of professional development programs on climate change, a topic included for the first time in national standards.  相似文献   

“Kids from here don't go to uni”: Considering first in family students' belonging and entitlement within the field of higher education in Australia     

Sarah O&#x;Shea 《European Journal of Education》2021,56(1):65-77

  相似文献