نتایج جستجو برای: longitudinal data
تعداد نتایج: 2500390 فیلتر نتایج به سال:
Influence of Heterogamy by Religion on Risk of Marital Dissolution: A Cohort Study of 20,000 Couples
Heterogamous marriages, in which partners have dissimilar attributes (e.g. by socio-economic status or ethnicity), are often at elevated risk of dissolution. We investigated the influences of heterogamy by religion and area of residence on risk of marital dissolution in Northern Ireland, a country with a history of conflict and residential segregation along Catholic-Protestant lines. We expecte...
Longitudinal data on dyads have statistical dependencies due to stable and time-varying characteristics of the dyad members and of their environment. This article discusses two ways of estimating these dependencies, one involving multilevel models and the other involving structural equation models. To illustrate each approach, we analyze data on daily reports of anger by males and females in co...
Background: The defining characteristic of a longitudinal study is that subjects are measured repeatedly through time. Longitudinal studies are in contrast to cross-sectional studies, in which a single outcome is measured for each individual. The primary objective of this study is to use copulas to model the within-subject dependencies over time. Methods: In this longitudinal study, we used the...
Background and Objectives: A major challenge that affects the longitudinal studies is the problem of missing data. Missing in the data may result in the loss of part of the information which reduces the accuracy of the estimator and obtain the results will be biased and inaccurate. Therefore, it is necessary to evaluate the missing data mechanism from a longitudinal research and to consider thi...
Recently, quantile regression (QR) models are often applied for longitudinal data analysis. When the distribution of responses seems to be skew and asymmetric due to outliers and heavy-tails, QR models may work suitably. In this paper, a semi-parametric quantile regression model is developed for analysing continuous longitudinal responses. The error term's distribution is assumed to be Asymmetr...
Longitudinal heat conduction is an important parameter in the cryogenic field, especially in cryogenic heat exchangers. In the present work, the parasitic effect of tube wall longitudinal heat conduction on temperature measurement has been studied in cryogenic laminar hydrogen flow. The effects of various parameters such as wall cold end temperature, wall thermal conductivity, gas volumetric fl...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید