Authors:Yaser Mehrali, Majid Asadi, and Gholamhossein Hamedani
Gupta, R. C. and Brown, N. , Reliability studies of the skew-normal distribution and its application to a strength-stress model, Communications in Statistics-Theory and Methods , 30 (2001), 2427–2445.
devices (VCDs) and their associated benefits of rapid hemostasis, VCDs have been applied to vascular sites as an alternative to manual compression. VCDs were first introduced in the 1990s [ 2 ]. Their reliability and success have been proven in many
Certain similarities between the types of data reported in retrospective citation analyses and lifetime/survival/reliability models are noted. Graphical techniques much used in reliability analyses are exploited to throw further light on observed citation age distributions and these are then compared and contrasted with previously reported studies. These simple techniques allow systematic departures of empirical data from assumed theoretical models to be highlighted and the models to be compared.
Authors:R. Rice, Christine Borgman, Diane Bednarski, and P. Hart
Citation analysis is a useful method for studying a wide range of topics in bibliometrics and the sociology of science. However, many challenges have been made to the validity and reliability of the underlying assumptions, the data, and the methods used in citation studies. This article addresses these issues in three parts. First is a brief review of validity and reliability issues in citation research. Next we explore measurement error in a principal source of journal-to-journal citation data, the Institute for Scientific Information'sJournal Citation Reports. Possible sources of measurement error include discrepancies between citing and cited data, changed or deleted journal titles, aberrant abbreviations, and listing algorithms. The last section is a detailed description of ways to overcome some of the measurement errors. The data and examples are drawn from a journal-to-journal citation study in the fields of Communication, Information Science, and Library Science.