THE DESIGN AND ANALYSIS OF EXPERIMENTS. By Oscar Kempthorne. New York, John Wiley and Sons, Inc., 1952. 631 pp. $8.50. This book by a teacher of statistics (as well as a consultant for \"experimenters\") is a comprehensive study of the philosophical background for the statistical design of experiment. It is necessary to have some facility with algebraic notation and manipulation to be able to use the volume intelligently. The problems are presented from the theoretical point of view, without such practical examples as would be helpful for those not acquainted with mathematics. The mathematical justification for the techniques is given. As a somewhat advanced treatment of the design and analysis of experiments, this volume will be interesting and helpful for many who approach statistics theoretically as well as practically. With emphasis on the \"why,\" and with description given broadly, the author relates the subject matter to the general theory of statistics and to the general problem of experimental inference. MARGARET J. ROBERTSON

The Design and Analysis of Experiments

Ten years ago, we presented the DeLone and McLean Information Systems (IS) Success Model as a framework and model for measuring the complex-dependent variable in IS research. In this paper, we discuss many of the important IS success research contributions of the last decade, focusing especially on research efforts that apply, validate, challenge, and propose enhancements to our original model. Based on our evaluation of those contributions, we propose minor refinements to the model and propose an updated DeLone and McLean IS Success Model. We discuss the utility of the updated model for measuring e-commerce system success. Finally, we make a series of recommendations regarding current and future measurement of IS success.

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The DeLone and McLean Model of Information Systems Success: A Ten-Year Update

Data Mining - Concepts and Techniques.

According to W. Edwards Deming, American companies require nothing less than a transformation of management style and of governmental relations with industry. In Out of the Crisis, originally published in 1982, Deming offers a theory of management based on his famous 14 Points for Management. Management's failure to plan for the future, he claims, brings about loss of market, which brings about loss of jobs. Management must be judged not only by the quarterly dividend, but by innovative plans to stay in business, protect investment, ensure future dividends, and provide more jobs through improved product and service. In simple, direct language, he explains the principles of management transformation and how to apply them.

Out of the Crisis

Data Mining Practical Machine Learning Tools and Techniques

Statistics instruction: the next generation

Personal social networks and health among aging adults in Agincourt, South Africa: A multidimensional approach

An increasing proportion of information technology IT/information system adoption research collects data using online surveys. However, a paucity of research assesses the equivalence of paper-based versus Internet-based surveys in collectivistic cultures. Furthermore, no theoretical or empirical research investigates how cultural differences between collectivistic and individualistic cultures influence the measurement equivalence ME of these survey modes. To explore these issues, online and paper-based surveys with comparable samples were carried out in both an individualistic the USA and a collectivistic culture China. Confirmatory factor analysis was conducted to examine the ME across both survey modes in these different cultures. Results indicate that the relatively larger satisficing discrepancy between paper and online surveys causes respondents in collectivistic cultures to have an increased likelihood of providing responses that vary as compared to respondents in individualistic cultures. The disparate responses, in turn, result in increased measurement variance between the two survey modes. The findings of this study bridge a gap in the literature and address the question of how culture influences online satisficing behaviour and how that behaviour causes measurement invariance across survey modes. This study also explains the possible underlying mechanisms by which different national cultures exert their influence on survey results. The findings provide important implications for IT researchers, especially those in collectivistic cultures or those who need to collect data in collectivistic cultures using online surveys or mixed-mode surveys that include an online survey mode.

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The equivalence of Internet versus paper-based surveys in IT/IS adoption research in collectivistic cultures: the impact of satisficing

Personal social networks and their association with the health of older people have been explored, but there are few studies that examined the relationship between the general health of older people living with HIV/AIDS (OPLWHA) and their personal social networks This exploratory study investigates the characteristics of personal networks among OPLWHA and the relationship between the self-rated health and personal social networks of OPLWHA in Lome, Togo Forty-nine OPLWHA were interviewed via an egocentric survey We examined the composition and size of the networks of OPLWHA Also, the correlation between networks and self-reported health was examined Findings show that the OPLWHA had personal social networks that included three types of people: immediate kin, extended kin, and non-kin Additionally, these networks varied by size While the mean number of people in the smaller network (people from whom the OPLWHA can borrow an important sum of money) was less than one person (055), the mean number of people in the larger network was three (people with whom the OPLWHA enjoy socializing) Furthermore, only the network of people with whom OPLWHA enjoy socializing had a significant positive correlation on the self-rated health of OPLWHA Consistent with prior research, we found that the mere existence of a network does not imply that the network has a positive correlation with the subject or that the network provides the social support needed to positively influence health A study of the correlation between social network characteristics and health in the population of older people with HIV/AIDS is important as the number of OPLWHA continues to grow

Self-reported Health and Personal Social Networks of Older People Living with HIV/AIDS in Lomé, Togo

This work investigates the service quality perceptions of information system users that use a library information system in an engineering research environment This paper also examines the relationship between the relative importance allocated by the system's users to each of the five SERVQUAL dimensions as measured by the rating allocated to that dimension and the importance ratings of the individual items within the dimensions Findings suggest that users rate the importance of system responsiveness and reliability above other service quality dimensions and the number of questions on the SERVQUAL instrument could be reduced to a smaller, more tractable set of items

Victor R. Prybutok

Papers

Statistics instruction: the next generation

Personal social networks and health among aging adults in Agincourt, South Africa: A multidimensional approach

The equivalence of Internet versus paper-based surveys in IT/IS adoption research in collectivistic cultures: the impact of satisficing

Self-reported Health and Personal Social Networks of Older People Living with HIV/AIDS in Lomé, Togo

Using importance ratings to create an information service quality measure