نتایج جستجو برای: standard errors
تعداد نتایج: 642047 فیلتر نتایج به سال:
background and objectives: for total analytical error, imprecision (sd) and bias, performance goals for laboratory tests have most often been developed. a total analytical error goal requires that the combination of errors from all sources (random and systematic errors) be within some acceptable limit. materials and methods: fifty vials of sodium and potassium standards (sandos company) were ch...
A crucial problem in the statistical analysis of hierarchically structured data is the dependence of the observations at the lower levels. Multilevel modeling programs account for this dependence and in recent years these programs have been widely accepted. One of the major assumptions of the tests of signi2cance used in the multilevel programs is normality of the error distributions involved. ...
Abstract This study evaluated the translation quality of English equivalents of Persian proper nouns in the tourist signs and bilingual boards in Isfahan. To find different errors in the translations of the bilingual boards and tourist signs, the data were collected directly by taking picture or writing exactly from the available tourist signs and bilingual boards. Then, the errors were assesse...
ntroduction: In all over the world, one of the major problems in health care is medical errors, causing physical and psychological complications for patients, family and even the community. So, identification and assessment of human errors’ probability and their consequences in eye surgeries was the aim of this study. Methods: This cross-sectional study was performed using PHEA technique...
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