نتایج جستجو برای: نمره propensity
تعداد نتایج: 41968 فیلتر نتایج به سال:
هدف: تخمین شناختی تلاش برای ارائه یک پاسخ معقول براساس اطلاعات در دسترس است. هدف از این مطالعه طراحی آزمون و بررسی روایی، پایایی مقادیر هنجار آن روش: 643 نفر دانشجویان دانشگاه شهید بهشتی انجام شد. آزمون‌های شده حاضر، مرتب کردن کارت‌های ویسکانسین، رنگ واژه استروپ حافظه فعال چند محرک پیشین به عنوان آزمون‌های کارکرد اجرایی همزمان ارزیابی مورد استفاده قرار گرفت. همبستگی پیرسون روایی همزمان، تی مق...
In order to study the tendency of amino acid neighbors in helical structures, proteins with known structures were carefully analyzed. The studied helical positions: N , Ncap, N1, N2, N3, N4, M, C4, C3, C2, C1, Ccap, C and their doublet counterparts: N Ncap, NcapN1, N1N2, N2N3, N3N4, M1M2, M2M3, C4C3, C3C2, C2C1, C1Ccap, CcapC were carefully analyzed. The propensity for all amino acids i...
his study aims to offer a model of propensity toward indebtedness using behavioral factors from 384 indebted customers of Maskan bank in Tehran. A questionnaire comprising 41 questions was administered. The questionnaire addressed demographic variables and seven behavioral factors: financial literacy, risk perception, risk behavior, emotion, materialism, indebtedness, and money-related values. ...
In many statistical studies some units do not respond to a number or all of the questions. This situation causes a problem called non-response. Bias and variance inflation are two important consequences of non-response in surveys. Although increasing the sample size can prevented variance inflation, but cannot necessary adjust for the non-response bias. Therefore a number of methods ...
زمینه و هدف: در حال حاضر سخنرانی به طور گستردهای به عنوان یک روش آموزش در سطح دانشگاه مورد قرار میگیرد ، بویژه اگر هدف انتقال مطالب به تعداد زیادی از فراگیران باشد . آنچه که در سالهای اخیر در روشهای آموزش سخنرانی در دانشگاههای کشور شیوع بیشتری پیدا کرده است، ضبط صدای سخنران توسط فراگیران میباشد. در برخی از مطالعاتی که تا کنون انجام شده مطرح گردیده است که ضبط صدای سخنرانی در دانشگاه و استفاد...
background: the aim of this study was to investigate the relationship between congenital hypothyroidism and several variables using two different adjustment methods. methods: this matched case-control study was conducted in hamadan province, the west of iran, in 2012 enrolling neonates born between 2005 and 2011 and covered by screening program for congenital hypothyroidism. the neonates with t...
Doubly robust estimation combines a form of outcome regression with a model for the exposure (i.e., the propensity score) to estimate the causal effect of an exposure on an outcome. When used individually to estimate a causal effect, both outcome regression and propensity score methods are unbiased only if the statistical model is correctly specified. The doubly robust estimator combines these ...
We explore the finite sample properties of several semiparametric estimators of average treatment effects, including propensity score reweighting, matching, double robust, and control function estimators. When there is good overlap in the distribution of propensity scores for treatment and control units, reweighting estimators are preferred on bias grounds and attain the semiparametric efficien...
Parents invest in their children’s human capital in several ways. We investigate the extent to which the levels and composition of parent-child time varies across countries with different welfare regimes: Finland, Germany and the United States. We test the hypothesis of parentchild time as a form of human capital investment in children using a propensity score treatment effects approach that ac...
In recent years many studies have reported significant empirical associations between fertility and marital dissolution. Whether this is a causal effect or only a correlation is not clear. We explore this issue by using the propensity score methods. First we explore the effect of the binary treatment ”having young children or not” on marital disruption. Then, we extend the method to the case of...
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