[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 7, Issue 2 (3-2014) ::
JSS 2014, 7(2): 233-248 Back to browse issues page
Two Levels Analysis with Skew Normal Random Effects and Modeling of Longitudinal Data
Mohammad Gholami Fesharaki, Anoshirvan Kazemnejad *, Farid Zayeri
Abstract:   (15246 Views)
In two level modeling, random effect and error's normality assumption is one of the basic assumptions. Violating this assumption leads to incorrect inference about coefficients of the model. In this paper, to resolve this problem, we use skew normal distribution instead of normal distribution for random and error components. Also, we show that ignoring positive (negative) skewness in the model causes overestimating (underestimating) in intercept estimation and underestimating (overestimating) in slope estimation by a simulation study. Finally, we use this model to study relationship between shift work and blood cholesterol.
Keywords: Two Level Modeling, Skew Normal Distributions, Bayesian Analysis
Full-Text [PDF 468 kb]   (2590 Downloads)    
Type of Study: Applied | Subject: Biostatistics
Received: 2013/05/7 | Accepted: 2014/03/17 | Published: 2014/03/17
Send email to the article author

Add your comments about this article
Your username or Email:


XML   Persian Abstract   Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Gholami Fesharaki M, Kazemnejad A, Zayeri F. Two Levels Analysis with Skew Normal Random Effects and Modeling of Longitudinal Data. JSS. 2014; 7 (2) :233-248
URL: http://jss.irstat.ir/article-1-206-en.html

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 7, Issue 2 (3-2014) Back to browse issues page
مجله علوم آماری – نشریه علمی پژوهشی انجمن آمار ایران Journal of Statistical Sciences

Persian site map - English site map - Created in 0.04 seconds with 30 queries by YEKTAWEB 4460