نتایج جستجو برای: transformed chi
تعداد نتایج: 107374 فیلتر نتایج به سال:
In 1991 the Clinical Trials Subcommittee of the International Headache Society (IHS) developed and published its first edition of the Guidelines on controlled trials of drugs in episodic migraine because only quality trials can form the basis for international collaboration on drug therapy, and these Guidelines would 'improve the quality of controlled clinical trials in migraine'. With the curr...
UNLABELLED Migraine can be triggered by many factors such as stress, sleep, fasting and environmental causes. There are few studies that evaluated migraine trigger factors in the adolescent population. METHODS A total of 100 participants from 10 to 19 years were subjected to a detailed headache questionnaire, with demographic and clinical data, and a headache diary including trigger factors d...
We propose a new methodology for the estimation of reference intervals for data sets with small numbers of observations or for those with substantial numbers of outliers. We propose a prediction interval that uses robust estimates of location and scale. The SAS software can be readily modified to do these calculations. We compared four reference interval procedures (nonparametric, transformed, ...
the main concern of this study was communication strategies (css) which are used to compensate for communication breakdown. the goals of this study were to examine whether proficiency level of iranian students had any relationship with their choice of css. this research was descriptive in nature. the participants were 15 pre-intermediate and 14 intermediate efl learners between 16 to 21years ol...
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