In hierarchical-design experiments researchers need to test for nested effects, but sometimes parametric assumptions are violated. We show that the Kruskal-Wallis (K-W) rank test can be extended to test for such effects. Let B = b1 . . . bh be the tested effect, and A = a1 . . . ag be the effect immediately above it in the hierarchy. If one calculates separate K-W statistics for the effect B at...

this paper is to identify the determinants of risk management and measure its impact on strategic management in tondgooyan petrochemical company during 2013-2014 in mahshahr city. the research method used is a descriptive-survey one. the population contains 200 employees. to test the hypotheses, the researcher uses a questionnaire consisted of 45 questions. the results are tested by kolmogorov-...

0747-5632/$ see front matter 2013 Elsevier Ltd. All rights reserved. http://dx.doi.org/10.1016/j.chb.2013.01.004 q Part of this research has been presented at the 10th International Conference on Intelligent Virtual Agents, Reykjavik, Iceland, September 15–17, 2011 (Friedman, Hasler, Brovman, & Tuchman, 2011). ⇑ Corresponding author. Tel.: +972 54 524 2926; fax: +972 9 952 7650. E-mail addresse...

While teaching my classmates and me graduate microeconomics at Auburn University in 1995, David Laband recounted a story from his first year of doctoral studies in economics at Virginia Polytechnic Institute. As he read for a class taught by Gordon Tullock, Laband came upon what he believed was an error by Milton Friedman. The then-graduate student went to Tullock’s office, where the professor,...

While previous research on the rise of neoliberalism has focused elite networks economists, politicians, journalists, and business leaders, this article investigates attractiveness Milton Friedman's ideas at time neoliberal breakthrough from a bottom-up perspective. A close reading mostly favorable letters by two hundred viewers in response to 1980 television documentary series Free Choose indi...

Background and purpose: This study aimed to manage medical errors before and after the implementation of accreditation in public, private, and social security hospitals of Mazandaran, Iran. Materials and Methods: This descriptive study has been done in 38 hospitals. Data were collected through documents reviewed relating to 2013 and 2014. The paired t-test and Friedman test were used by statist...