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1.
Reliability and Validity of Real-Time Response Measurement: a Comparison of Two Studies of a Televised Debate in Germany 总被引:1,自引:0,他引:1
Maier Jurgen; Maurer Marcus; Reinemann Carsten; Faas Thorsten 《Int. Journal of Public Opinion Research》2007,19(1):53-73
This paper investigates the reliability and validity of real-timeresponse measurements (RTR). It is based on a comparison oftwo quasi-experimental studies independently conducted on thesecond televised debate of the two major candidates for chancellorin the 2002 German federal election campaign. Participants inBamberg and Mainztwo mid-sized German citiesfollowedthe debate on a large-scale screen. The viewers immediatereactions to the candidates were measured in real-time. In termsof technicalities and substance, both quasi-experiments differedin several important respects. For example, the system usedin Mainz was based on a control unit with a 7-point scale andyielded one merged metric dimension for both candidates. TheBamberg system measured positive and negative impressions ofthe candidates independently, yielding categorical data. Despitethese operational differences, the results show that both methodsrender reliable results that also meet the criteria of face,construct, and criterion validity. Hence, RTR measurements providevaluable, unique insights into subjective immediate reactionsto candidates in televised debates and help to explain post-debateperceptions and attitudes. Received for publication March 23, 2005. Revision received December 14, 2005. 相似文献
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Andrew R. Chapman Bill Vicenzino Paul W. Hodges Peter Blanch Allan G. Hahn Theodore E. Milner 《Journal of sports sciences》2013,31(7):767-782
Abstract The direct effects of cycling on movement and muscle recruitment patterns (neuromuscular control) during running are unknown but critical to success in triathlon. We outline and test a new protocol for investigating the direct influence of cycling on neuromuscular control during running. Leg movement (three-dimensional kinematics) and muscle recruitment (surface electromyography, EMG) were compared between a control run (no prior exercise) and a 30-min transition run that was preceded by 20 min of cycling. We conducted three experiments investigating: (a) the repeatability (between-day reliability) of the protocol; (b) the ability of the protocol to investigate, in highly trained national or international triathletes, the direct influence of cycling on neuromuscular control during running independent of neuromuscular fatigue; and (c) the ability of the protocol to provide a control, or baseline, measure of neuromuscular control (determined using a measure of stability) without causing fatigue. Kinematic and EMG measures of neuromuscular control during running showed moderate to high repeatability: mean coefficients of multiple correlation for repeatability of EMG and kinematics were 0.816 ± 0.014 and 0.911 ± 0.031, respectively. The protocol provided a robust baseline measure of neuromuscular control during running without causing neuromuscular fatigue (coefficients of multiple correlation for stability of EMG and kinematics were 0.827 ± 0.023 and 0.862 ± 0.054), while EMG and force data provided no evidence of fatigue. The protocol outlined here is repeatable and can be used to measure any direct influence of cycling on neuromuscular control during running. 相似文献
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Bill Ptacek 《Public Library Quarterly》2016,35(4):338-343
In this article, author Bill Ptacek says that the future is now, and, at least from the 1970s through today, in the field of early childhood work, the future has come so fast that it is constantly upon us. That reality means that those concerned about young children in libraries have been about adaptation on a continuing basis. In this world of rapid change, innovation is constant: City firefighters come to the libraries in uniform to read stories to children, library outreach specialists take programs to daycare centers in their communities, and staff members create a space in a library devoted to early childhood reading. This tradition of rapid change means that the early childhood staff of most large public libraries in North America is changing for the future on a regular basis. The work unit should be considered seriously as one model for 21st century public library reform. 相似文献
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Graphic elicitation, i.e. asking participants to draw, is an interview technique used to focus the interviewee on the given topic or gain extra meaning not covered verbally as part of the interview. This study analyses two interview contexts which included visual elicitation. It describes a successful example in which the researcher maintained control over the mode of the planned research task (diagram) as well as another example in which slippage occurred between the mode of the planned research task (drawing) and the resulting artefact (diagram). Through this analysis, strategies for maintaining researcher control over the mode of elicitation are identified, increasing our understanding about the theory and practice of both drawings and diagrams as two different modes of visual elicitation. The paper concludes that the required control does not necessarily comprise an increase in task structure (directing participants as to how to draw). Moreover, the subject and purpose of the task are equally important. Successful researcher control then comprises a careful balance between all the three aspects of purpose, structure and subject. 相似文献
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The aim of this paper is to propose information literacy as a soft applied discipline, of key importance in the information society. This is contrasted with the characterization of information literacy as a personal attribute in the U.S. and Australian Information Literacy standards. Vannevar Bush's vision of the technologically connected and enabled scientist is used to introduce a discussion of citizen's information needs and responsibilities in an age of “cheap complex devices.” The authors emphasize the key role of information literacy in this information society. Information literacy is identified as a soft applied discipline, with reference to disciplinary indicators that have been identified in the literature. Building on this concept of an information literacy discipline, the authors propose a mission for information literacy education focused around three elements: information literacy for citizenship, information literacy for economic growth, and information literacy for employability. The paper concludes by identifying that in terms of preparing citizens for managing and taking action in society, information literacy has much to contribute, and that it is vital to nurture this emergent discipline. 相似文献
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Bill F. Chamberlin Charlene J. Brown Marc A. Franklin 《Communication Booknotes Quarterly》2013,44(9-10):109-110
Bill F. Chamberlin and Charlene J. Brown, eds., THE FIRST AMENDMENT RECONSIDERED: NEW PERSPECTIVES ON THE MEANING OF FREEDOM OF SPEECH. AND PRESS (New York: Longman, 1982---$27.95) Marc A. Franklin, CASES AND MATERIALS ON MASS MEDIA LAW (Mineola, N.Y.: The Foundation Press, 1982---$26.00) LEGAL AND BUSINESS ASPECTS OF THE ADVERTISING INDUSTRY 1982 (Practicing Law Institute, 810 7th Avenue, New York, N.Y. 10019---$30.00, paper) PRIVACY (Social Issues Resources Inc., P.O. Box 2507, Boca Raton, Fla. 33432---two loose-leaf volumes containing a total of 180 articles, $117.00, also available separtately at $65.00 and $52.00 respectively) 相似文献