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EgoNET beta version 0.9 now available:

EgoNet™: Egocentric Network Assessment

In conjunction with Chris McCarty at the 
University of Florida Survey Research Center, 
MDLogix is developing the EgoNET system for assessing egocentric networks.

Create Egocentric Network Surveys

The EgoNET system includes an application based 
on MDLogix‘s 
specially modified to create surveys that collect 
information about ego, alters, ego-alter 
relationships, and alter-alter relationships.

Conduct Egocentric Network Interviews

Researchers use the EgoNET client to conduct 
interviews and collect data. EgoNET displays 
surveys created in EgoNET QBuilder in self-report 
format, and also allows field staff to enter free 
data gathered during interviews.

Visualize Egocentric Networks

The EgoNET client contains an embedded version of 
application for network analysis and 
visualization. After a subject completes a 
network survey via self-report, the VisuaLyzer 
displays the subject's network as a color-coded 
interactive graph, showing the alter 
characteristics and relationships associated with 
answers to each question. The EgoNET VisuaLyzer 
also calculates network measures such as node 
centrality, centralization, and other sub-group 
analyses. Field staff can use this information as 
a basis for further exploration of the subject's network via interview.

Export Data

Data can be collected by multiple researchers and 
later synchronized to a central database. The 
EgoNET client can also output and batch-process 
summary ego-network data in SPSS format.

Multiple Languages

The EgoNET system is built on the Assessment 
Architect platform, which can maintain text in 
multiple languages for any instrument and all 
interface elements. Spanish translations of the 
EgoNET QBuilder and client applications are in progress.

The University of Florida Survey Research Center 
is currently using the EgoNET system to study 
network influences on the smoking behavior of immigrants in Spain.


Allen Y. Tien, MD, MHS
President and Research Director
Medical Decision Logic, Inc.
724 Dulaney Valley Road
Towson, MD 21204

Adjunct Associate Professor
Division of Health Sciences Informatics
Johns Hopkins University School of Medicine


Clinical Associate Professor
Department of Psychiatry
West Virginia University
Morgantown, WV

web site address:

tel: 410-828-8948 or 410-821-5618
fax: 410-828-8948

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