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Volume 6, Issue 3 - September 30, 2011
JAQM Volume 6, Issue 3 - September 30, 2011
Comparing distributions: The Two-Sample Anderson-Darling Test as an Alternative to the Kolmogorov-Smirnoff Test (p )
This paper introduces the two-sample Anderson-Darling (AD) test of goodness of fit as a tool for comparing distributions, response time distributions in particular. We discuss the problematic use of pooling response times across participants, and alternative tests of distributions, the most common being the Kolmogorov-Smirnoff (KS) test. We compare the KS test and the AD test, presenting conclusive evidence that the AD test is more powerful: when comparing two distributions that vary (1) in shift only, (2) in scale only, (3) in symmetry only, or (4) that have the same mean and standard deviation but differ on the tail ends only, the AD test proves to detect differences better than the KS test. In addition, the AD test has a type I error rate corresponding to alpha whereas the KS test is overly conservative. Finally, the AD test requires less data than the KS test to reach sufficient statistical power.
The Credibility, Completeness and Accuracy of Information about First Aid in Case of Choking on the Romanian Websites (p )
A large number of studies assessing the quality of medical websites in various languages have shown that the quality of health related information is problematic. Nevertheless, the Romanian medical cyberspace has not yet been systematically evaluated. The goal of our study was to assess the credibility and content quality of information about first aid in case of choking intended for the general population on the Romanian websites. We evaluated a sample of 20 websites selected from the Google's first search results pages. The compliance to the credibility criteria was very low, the coverage of the topic was medium and the accuracy was good but we found frequent omission of important information about the first aid procedure for choking. Websites with high completeness and accuracy scores were rare, therefore, users should check several websites in order to get thoroughly and correctly informed about the topic.
Indicators for Economic and Social Development of Future Smart City (p )
This paper identifies a set of criteria and indicators to highlight the economic and social development from different smart cities. To characterize and prioritize various urban areas of a country a set of indicators should be used. This represents a starting point in formulating objectives and strategies for smart city development.