نتایج جستجو برای: using cochran
تعداد نتایج: 3389010 فیلتر نتایج به سال:
This is a semi experimental survey with the main goal of identifying effects of the use of fundal pressure in causing complication from the time of the woman,s entrance into the delivery room to the time of discharge from the hospital. 210 women took part in this survey, 70 of which were in the research and 140 in the observed group. The necessary data about the subject of the study were ga...
now-a-days graphic design plays a major role in influencing culture, society, business, and customers, in such a way that one could look upon every individual as a potential customer. graphic designers seek to identify customers needs and find an intelligent solution for them. correct identification and understanding of those needs is the first step towards achieving ones goals. marketing knowh...
Abstract Background We evaluated the association between I/D polymorphism in ACE gene and lung cancer risk by performing a meta-analysis. Methods The heterogeneity study was tested using Cochran ? 2 -based Q statistic test I test, then random ratio or fixed effect utilized to merge odds ratios (ORs) 95% confidence intervals (CIs) estimate strength of polymorphisms susceptibility cancer. Sensiti...
one factor that has highlighted the role of agriculture in the economy is to make the marketing system of agricultural products more efficient. the main purpose of this study was to identify the requirements of marketing the organic pomegranate of paveh, kermanshah province, iran, from the perspective of farmers. in order to identify contributing factors, an exploratory factor analysis was used...
A comparison of risk difference estimators in multi-center studies under baseline-risk heterogeneity
The risk di$erence is frequently used as a measure of the actual gain in the success rate between two treatments within a center (i.e. hospital). Interest is devoted to combining the risk di$erence across several centers under homogeneity but allowing for baseline-risk heterogeneity in each of the treatment arms. The purpose is to compare the e5ciency of six estimators for the common risk di$er...
Ergonomists and many other professionals apply ergonomics principles to musculoskeletal health problems. This study examines whether there are differences when it comes to judgement expertise concerning upper limb disorders (ULDs) between ergonomists and those with less ergonomics training. The Cochran-Weiss-Shanteau (CWS) performance index combines judgement consistency with discrimination int...
the research questions were as follows: 1. is there any relationship between the students concious awareness of the form and implications of the conjuncations and their improvement in using appropriate conjunctions? 2. does students knowledge of the from and the implications of the conjunctions help them to produce more coherent writings. 3. does a comparison between english conjunctions and th...
The asymptotic power of the Mantel-Haenszel test is compared to that of its competitors.
Observational studies, including the case-control design frequently used in epidemiology, are subject to a number of biases and possible confounding factors. Failure to adjust with them may lead to an erroneous conclusion about the existence of a causal relationship between exposure and disease. The Cochran-Mantel-Haenszel (CMH) test is widely used to measure the strength of the association bet...
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