نتایج جستجو برای: predictors
تعداد نتایج: 102022 فیلتر نتایج به سال:
Background and aims: Midwives experience a high level of stress due to heavy workloads, which hasbeen shown to have adverse effects on well-being. Accordingly, the main goal of this study was toassess the predictors associated with a healthy lifestyle in a sample of midwives working in hospitalsand health centers of Qazvin, Iran.Methods: A total of 200 midwives were recr...
the purpose of this thesis was to investigate how differently metacognitive, cognitive, and social/affective strategies affect l2 learners’ reading comprehension. to this end, the study employed a quasi-experimental design with a placement test as a proficiency test to find the homogeneity of groups. three classes were randomly selected as the experimental groups (n =90), and each class was tau...
background: vaccination status is more often evaluated by up-to-date vaccination coverage rather than timeliness of immunization. this study was conducted to evaluate delayed vaccination during infancy period and to determine the predictors effecting on vaccination delay. methods: this cross-sectional study was conducted from june to september 2011 in hamadan province, the west of iran, recruit...
Dimension reduction is central to an analysis of data with many predictors. Sufficient dimension reduction aims to identify the smallest possible number of linear combinations of the predictors, called the sufficient predictors, that retain all of the information in the predictors about the response distribution. In this article, we propose a Bayesian solution for sufficient dimension reduction...
This note introduces Venn–Abers predictors, a new class of Venn predictors based on the idea of isotonic regression. As all Venn predictors, Venn–Abers predictors are well calibrated under the exchangeability assumption.
In this paper, the problem of predicting times to failure of units censored in multiple stages of progressively hybrid censoring for the proportional hazards family is considered. We discuss different classical predictors. The best unbiased predictor ($BUP$), the maximum likelihood predictor ($MLP$) and conditional median predictor ($CMP$) are all derived. As an example, the obtained results ar...
abstract background: pregnancy with anxious or depressive symptoms might be associated with worse birth outcomes. the aim of this study was to determine the demographic predictors of anxiety and depression symptoms in pregnant women. materials and methods: we assessed pregnancy anxiety and depression levels among 142 women in three trimesters. all subjects completed two questionnaires: demograp...
background: reports on the determinants of morbidity in coronary artery bypass graft surgery (cabg) have focused on outcome measures such as length of postoperative stay in the intensive care unit (icu). we proposed that major comorbidities in the icu hampered the prognostic effect of other weaker but important preventable risk factors with effect on patients’ length of hospitalization. so we a...
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