Home About us Contact
|
Home About us Contact | ||
|
|
||
Information Quality (information + quality)
Selected AbstractsImproving the quality of health information: the contribution of C-H-i-QHEALTH EXPECTATIONS, Issue 3 2002Tom Hain MSc RGN RSCN FAETC The quality of information should be the key driver in communicating health messages to the public. Staff at The Centre for Health Information Quality (C-H-i-Q) have worked with an extensive list of partner organizations from a range of disciplines. These stakeholders express a desire to see improvement in the standards of patient information, and display a willingness to embrace new approaches in order to achieve change. The result is an increasingly significant contribution in the development of the information-exchange model of health-care, where the aim is to maximize public confidence in health information. Key activities include defining principles of quality assurance, engaging with stakeholders, and developing tools and training for producers and providers of health information. [source] Is All Communication Created Equal?: An Investigation into the Effects of Communication Mode on Perceived Information QualityTHE JOURNAL OF PRODUCT INNOVATION MANAGEMENT, Issue 2 2000Elliot Maltz Enhancing communication between functions is crucial to successful product development and management. Previous work in the product innovation management literature has made two implicit assumptions. First, that increasing the frequency of information dissemination from one function to the other always improves the perceived quality of the information received. The second assumption is that all types of interfunctional communication carry equal weight in the decision-making process of the target of that communication. The current study develops a typology of communication modes, which suggests a rationale for why these assumptions may not be true. The empirical findings of the study, based on a survey of 504 nonmarketing managers indicate that the relationship between total communication frequency and perceived information quality (PIQ) is nonlinear. Specifically, the study finds that marketing managers can either communicate too little or too much with nonmarketing managers. If they interact too infrequently, they run the risk of not understanding the way to most effectively communicate market information. If they communicate too much, they may overload the manager with too much information and erode the overall quality of the information sent. In addition, some modes of communication are more effective in improving perceptions of the quality of market information. For instance, regular e-mail sent by marketing managers seems to have no effect on perceived information quality. On the other hand, e-mail sent with supporting documentation can have a strong positive effect on perceived information quality. Impromptu phone calls by marketing have less positive effects than scheduled phone calls. Interestingly, too much of the wrong types of communication actually seem to reduce perceptions of perceived information quality, and consequently the likelihood that market information will be used. The study also suggests that certain kinds of communication are better for manufacturing managers and others more effective in sharing information with R&D managers. For instance, disseminating information through written reports seems to reduce perceived information quality. This is particularly true for R&D managers. On the other hand too many meetings can reduce perceptions of PIQ, particularly on the part of manufacturing managers. Implications for theory and practice are discussed. [source] Contemporary referral of patients from community care to cardiology lack diagnostic and clinical detailINTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 5 2006S. Bodek Summary The quantity of referrals to secondary care is increasing. That the quality of medical referrals is decreasing is a common allegation yet has rarely been assessed. We report a time-limited, cross-sectional survey evaluating cardiological referral information quality. Referral letters (n = 218, excluding direct access pro formas) from GPs to the Cardiology Department at City Hospital, Birmingham, were collated and analysed over 2 months. A subset (n = 49) of these patients completed questionnaires assessing their knowledge and patient communication of the referral. Information quality was poor (length, diagnosis, expectation, prior treatment and investigation) with almost half of all letters containing only outline symptomatic complaints without diagnosis. The majority of patients referred had not been investigated or treated in any way before referral. Despite lack of understanding of the reason for referral, typically the majority of patients expressed themselves as satisfied with the process. Given most referrals are seen as appropriate, information exchange between secondary and primary care is crucial. By contrast, the standard of even basic clinical assessment communicated between primary care and secondary care was severely limited. The reason(s) why medical assessment is lacking are unclear but must be explored to give more support to primary care to complete basic medical task particularly if investment is to flow into this source. [source] Developing Measurement Theory for Classroom Assessment Purposes and UsesEDUCATIONAL MEASUREMENT: ISSUES AND PRACTICE, Issue 4 2003Susan M. Brookhart In many fields of inquiry, the need for new theoretical developments is often best seen in areas of strain, and strain is apparent in several areas in which the conventions of measurement theory do not quite "fit" classroom assessment. Three areas of strain are analyzed in order to suggest how theoretical development might focus directly on information quality in the classroom assessment context. This article describes the context dependence of classroom assessment, its inextricable relationship with instruction, and its simultaneous formative and summative functions. Thus a case is made for new theoretical developments in the area of measurement in the classroom. [source] Selective exposure to information: the impact of information limitsEUROPEAN JOURNAL OF SOCIAL PSYCHOLOGY, Issue 4 2005Peter Fischer In research on selective exposure to information, people have been found to predominantly seek information supporting rather than conflicting with their opinion. In most of these studies, participants were allowed to search for as many pieces of information as they liked. However, in many situations, the amount of information that people can search for is restricted. We report four experiments addressing this issue. Experiment 1 suggests that objective limits regarding the maximum number of pieces of information the participants could search for increases the preference for selecting supporting over conflicting information. In Experiment 2, just giving participants a cue about information scarcity induces the same effect, even in the absence of any objective restrictions. Finally, Experiment 3 and 4 clarify the underlying psychological process by showing that information limits increase selective exposure to information because information search is guided by the expected information quality, which is basically biased towards supporting information, and information limits act to reinforce this tendency. Copyright © 2005 John Wiley & Sons, Ltd. [source] The Effect of Information Quality on Optimal Portfolio ChoiceFINANCIAL REVIEW, Issue 2 2006Frederik Lundtofte C13; G11 Abstract Three types of agents acting on different information sets are considered: fully informed agents, insiders, and outsiders. Differences in information quality are shown to affect the properties of their optimal portfolios. For an outsider, the share of wealth invested in the stock is decreasing in the variance of the stock. However, for an insider, the effect of an increasing stock variance on the optimal portfolio weight is ambiguous. In a calibration to U.S. data, the confidence intervals of the insider's demand for the stock converge, whereas the outsider's confidence intervals become wider. [source] Earnings characteristics and analysts' differential interpretation of earnings announcements: An empirical analysisACCOUNTING & FINANCE, Issue 2 2009Anwer S. Ahmed G14; M41 Abstract This study provides empirical evidence on factors that drive differential interpretation of earnings announcements. We document that Kandel and Pearson's forecast measures of differential interpretation are decreasing in proxies for earnings quality and pre-announcement information quality. This evidence yields new and useful insights regarding which earnings announcements are less likely to generate newfound disagreement among analysts and investors. Recent research suggests that investor disagreement can increase investment risk, increase the cost of capital, and cause stock prices to deviate from fundamental value. Therefore, our results support prior intuition that increasing the quality of earnings and pre-announcement information can improve the efficiency of capital markets. [source] Contemporary referral of patients from community care to cardiology lack diagnostic and clinical detailINTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 5 2006S. Bodek Summary The quantity of referrals to secondary care is increasing. That the quality of medical referrals is decreasing is a common allegation yet has rarely been assessed. We report a time-limited, cross-sectional survey evaluating cardiological referral information quality. Referral letters (n = 218, excluding direct access pro formas) from GPs to the Cardiology Department at City Hospital, Birmingham, were collated and analysed over 2 months. A subset (n = 49) of these patients completed questionnaires assessing their knowledge and patient communication of the referral. Information quality was poor (length, diagnosis, expectation, prior treatment and investigation) with almost half of all letters containing only outline symptomatic complaints without diagnosis. The majority of patients referred had not been investigated or treated in any way before referral. Despite lack of understanding of the reason for referral, typically the majority of patients expressed themselves as satisfied with the process. Given most referrals are seen as appropriate, information exchange between secondary and primary care is crucial. By contrast, the standard of even basic clinical assessment communicated between primary care and secondary care was severely limited. The reason(s) why medical assessment is lacking are unclear but must be explored to give more support to primary care to complete basic medical task particularly if investment is to flow into this source. [source] A conceptual framework and belief-function approach to assessing overall information qualityINTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS, Issue 1 2003Matthew Bovee We develop an information quality model based on a user-centric view adapted from Financial Accounting Standards Board,1 Wang et al.,2 and Wang and Strong.3 The model consists of four essential attributes (or assertions): accessibility, interpretability, relevance, and integrity. Four subattributes lead to an evaluation of integrity: accuracy, completeness, consistency, and existence. These subattributes relating to integrity are intrinsic in nature and relate to the process of how the information was created and the first three attributes: (accessibility, interpretability, and relevance) are extrinsic in nature. We present our model as an evidential network under the belief-function framework to permit user assessment of quality parameters. Two algorithms for combining assessments into an overall IQ measure are explored, and examples in the domain of medical information are used to illustrate key concepts. We discuss two scenarios, online user and assurance provider, which reflect two likely and important aspects of IQ evaluation currently facing information users,concerns about the impact of poor quality online information and the need for IQ assurance. © 2003 Wiley Periodicals, Inc. [source] The Accrual Anomaly Under Different Accounting Standards , Lessons Learned from the German ExperimentJOURNAL OF BUSINESS FINANCE & ACCOUNTING, Issue 7-8 2008Christoph Kaserer Abstract:, Several studies document that investors systematically overreact to accrual-based accounting information. We address the question to what extent this accrual anomaly is related to different accounting standards. We provide empirical evidence that the accrual anomaly is also present in Germany. However, this anomaly seems mainly to be driven by firms presenting their financial statements under IFRS or US-GAAP, while the anomaly is unlikely to exist for those firms complying with German GAAP. It is argued that introducing true and fair view accounting, like IFRS, that relies on difficult-to-verify information, may not be suitable to improve accounting information quality in the context of a weak corporate governance system. [source] How and why do college students use Wikipedia?JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 11 2009Sook Lim The purposes of this study were to explore college students' perceptions, uses of, and motivations for using Wikipedia, and to understand their information behavior concerning Wikipedia based on social cognitive theory (SCT). A Web survey was used to collect data in the spring of 2008. The study sample consisted of students from an introductory undergraduate course at a large public university in the midwestern United States. A total of 134 students participated in the study, resulting in a 32.8% response rate. The major findings of the study include the following: Approximately one-third of the students reported using Wikipedia for academic purposes. The students tended to use Wikipedia for quickly checking facts and finding background information. They had positive past experiences with Wikipedia; however, interestingly, their perceptions of its information quality were not correspondingly high. The level of their confidence in evaluating Wikipedia's information quality was, at most, moderate. Respondents' past experience with Wikipedia, their positive emotional state, their disposition to believe information in Wikipedia, and information utility were positively related to their outcome expectations of Wikipedia. However, among the factors affecting outcome expectations, only information utility and respondents' positive emotions toward Wikipedia were related to their use of it. Further, when all of the independent variables, including the mediator, outcome expectations, were considered, only the variable information utility was related to Wikipedia use, which may imply a limited applicability of SCT to understanding Wikipedia use. However, more empirical evidence is needed to determine the applicability of this theory to Wikipedia use. Finally, this study supports the knowledge value of Wikipedia (Fallis, 2008), despite students' cautious attitudes toward Wikipedia. The study suggests that educators and librarians need to provide better guidelines for using Wikipedia, rather than prohibiting Wikipedia use altogether. [source] Trust in digital informationJOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY, Issue 3 2008Kari Kelton Trust in information is developing into a vitally important topic as the Internet becomes increasingly ubiquitous within society. Although many discussions of trust in this environment focus on issues like security, technical reliability, or e-commerce, few address the problem of trust in the information obtained from the Internet. The authors assert that there is a strong need for theoretical and empirical research on trust within the field of information science. As an initial step, the present study develops a model of trust in digital information by integrating the research on trust from the behavioral and social sciences with the research on information quality and human, computer interaction. The model positions trust as a key mediating variable between information quality and information usage, with important consequences for both the producers and consumers of digital information. The authors close by outlining important directions for future research on trust in information science and technology. [source] Impact of organizational and project factors on acceptance and usage of project management software and perceived project successPROJECT MANAGEMENT JOURNAL, Issue 2 2008Abdullah Saeed Bani Ali Abstract This study surveyed 497 participants to determine the factors that affect project professionals' acceptance of project management software and the perceived impact of software usage on their performance. The study finds that greater information quality and higher project complexity are the dominant factors explaining higher levels of system utilization, that greater system functionality and ease of use have a significant positive relationship with increased software usage, and that a strong positive relationship exists between higher usage of project management software and perceived project managers' improved performance. Inconsistent with prior research, more training was not found to be associated with project management software usage. The study explains more than 40% of the variation in project management software acceptance and adds project management software usage to project success factors by empirically confirming for the first time that project management software enhances project professionals' perceived performance and provides a positive impact on the results of their projects. The study provides practical implications for project professionals, their organizations, senior management, decision makers, software developers, and vendors. These findings support the call for further research that investigates the diffusion of information technologies in the project management field and their impact on project success and competitive position. [source] Is All Communication Created Equal?: An Investigation into the Effects of Communication Mode on Perceived Information QualityTHE JOURNAL OF PRODUCT INNOVATION MANAGEMENT, Issue 2 2000Elliot Maltz Enhancing communication between functions is crucial to successful product development and management. Previous work in the product innovation management literature has made two implicit assumptions. First, that increasing the frequency of information dissemination from one function to the other always improves the perceived quality of the information received. The second assumption is that all types of interfunctional communication carry equal weight in the decision-making process of the target of that communication. The current study develops a typology of communication modes, which suggests a rationale for why these assumptions may not be true. The empirical findings of the study, based on a survey of 504 nonmarketing managers indicate that the relationship between total communication frequency and perceived information quality (PIQ) is nonlinear. Specifically, the study finds that marketing managers can either communicate too little or too much with nonmarketing managers. If they interact too infrequently, they run the risk of not understanding the way to most effectively communicate market information. If they communicate too much, they may overload the manager with too much information and erode the overall quality of the information sent. In addition, some modes of communication are more effective in improving perceptions of the quality of market information. For instance, regular e-mail sent by marketing managers seems to have no effect on perceived information quality. On the other hand, e-mail sent with supporting documentation can have a strong positive effect on perceived information quality. Impromptu phone calls by marketing have less positive effects than scheduled phone calls. Interestingly, too much of the wrong types of communication actually seem to reduce perceptions of perceived information quality, and consequently the likelihood that market information will be used. The study also suggests that certain kinds of communication are better for manufacturing managers and others more effective in sharing information with R&D managers. For instance, disseminating information through written reports seems to reduce perceived information quality. This is particularly true for R&D managers. On the other hand too many meetings can reduce perceptions of PIQ, particularly on the part of manufacturing managers. Implications for theory and practice are discussed. [source] The impact of outcome knowledge, role, and quality of information on the perceived legitimacy of lethal force decisions in counter-terrorism operationsBEHAVIORAL SCIENCES & THE LAW, Issue 3 2010Alasdair M. Goodwill Ph.D. According to the phenomenon of hindsight bias, once people know the outcome of an event, they tend to have biased estimates of the probability that the event would have occurred. In this study, we investigated whether hindsight bias affected judgements about the legitimacy of lethal force decisions in police shooting incidents for counter-terrorism operations. We also assessed to what extent this hindsight bias was mediated by factors such as role and information quality. Four hundred and eighty participants completed a short questionnaire that manipulated role (as senior police officer, Independent Police Complaints Commissioner, or family member, plus a "no role" control group), information quality (detailed/good or vague/ambiguous), and outcome knowledge (knowledge of outcome/hindsight versus no knowledge of outcome/foresight) in a 4,×,2,×,2 design. Results indicated that outcome knowledge affected the perception of threat and decision quality but not the blameworthiness of the senior police officer. Quality of information had a significant effect on all three dependent variables and role had a significant impact on judgements as to whether the decision to shoot was correct and also the perceived threat, though not on perceived blameworthiness. These findings indicate that people who have to judge the liability of lethal force decisions are not able to ignore outcome information, and are strongly influenced by the quality of information and by the role in which they are receiving the information. Copyright © 2009 John Wiley & Sons, Ltd. [source] Electronic information resources in undergraduate education: an exploratory study of opportunities for student learning and independenceBRITISH JOURNAL OF EDUCATIONAL TECHNOLOGY, Issue 3 2002Liz McDowell The fast,growing array of electronic information resources is often viewed as a significant opportunity for change in education, with shifts towards increased student independence in learning. In order for this to happen students need to develop the capability to deal with information. This qualitative interview,based study examines lecturer perspectives on the roles of electronic information resources in undergraduate education. In line with the phenomenographic tradition, three functional categories of electronic information use are proposed. Firstly, the "electronic academic library" offers new opportunities for access to materials but lecturers indicated minimal change to their teaching approaches. Electronic resources were simply added to reading lists and the responsibility for developing students' information skills was seen to rest with librarians. Secondly, lecturers identified changes towards more constructivist approaches to learning, drawing upon new sources of primary data available electronically and described specific teaching approaches to assist students to develop the relevant information handling skills. Finally, lecturers were uncertain about the value of the wider information resources of the Internet/Web for students and were concerned about variable information quality and the possibilities of plagiarism. The research indicates that information use in student learning is a multi,faceted phenomenon. Much current discussion centres on the concept of information literacy which draws together information skills and subject-related skills and knowledge. Students do not merely require generic information skills but a knowledge of the discipline and the capability to handle complex information. Partnerships between academics and librarians are a way forward in helping students to develop as autonomous information users. Not only do the two professional groups offer different expertise, but they also bring different perspectives on the problematic balance between student autonomy and student support. [source] | ||||||||||||||||||||||