The effects of correlation between class on parameter estimates in small group sizes of multilevel data

Sarudin, Norraida and Mohd Suradi, Nur Riza (2013) The effects of correlation between class on parameter estimates in small group sizes of multilevel data. Journal of Quality Measurement and Analysis, 9 (2). pp. 83-91. ISSN 1823-5670

PDF - Published Version Restricted to Registered users only Download (819kB) | Request a copy

Abstract

Multilevel analysis is usually performed on hierarchical data consisting of two or more levels. The highest level is the cluster level and the lowest level is individual level. The variation between levels is known as the intraclass correlation, ρ. This study discusses the effects of the intraclass correlation on parameter estimation when the cluster size is small. Simulation studies were performed with 27 different conditions on group size, sample size and intraclass correlation value. Findings show that different ρ resulted in different effects on parameter relative bias. In conclusion, ρ with values greater than or equal to 0.2 and group size of more than 50 tend to give smaller bias to parameters estimates.

Item Type:	Article (Journal)
Additional Information:	4943/40161
Uncontrolled Keywords:	Korelasi antara kelas; saiz kelompok; multitahap
Subjects:	Q Science > QA Mathematics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Computational and Theoretical Sciences
Depositing User:	Norraida Sarudin
Date Deposited:	05 Jan 2015 10:31
Last Modified:	05 Jan 2015 10:31
URI:	http://irep.iium.edu.my/id/eprint/40161

Actions (login required)

View Item