e-GovQual: A multiple-item scale for assessing e-government service quality
Xenia Papadomichelaki
1
, Gregoris Mentzas ⁎
National Technical University of Athens, 10682, Athens, Greece
abstract article info
Available online 25 September 2011
Keywords:
e-Government
Service
Quality
Measurement
Instrument
A critical element in the evolution of governmental services through the internet is the development of sites
that better serve the citizens' needs. To deliver superior service quality, we must first understand how citi-
zens perceive and evaluate online. Citizen assessment is built on defining quality, identifying underlying di-
mensions, and conceptualizing measurements of these e-government services. In this article an e-gov service
quality model (e-GovQual) is conceptualized and then a multiple-item scale for measuring e-gov service
quality of governmental sites where citizens seek either information or service, is developed, refined, validat-
ed confirmed and tested.
© 2011 Elsevier Inc. All rights reserved.
1. Introduction
The subject of e-service and website quality is very rich in context
of definitions, models, and measurement instruments. Nevertheless,
different quality dimensions have been proposed and there is no con-
sensus on the component dimensions. Collectively, the extant litera-
ture suggests that e-service quality is a multidimensional construct
although the content of what constitutes e-service quality varies
across studies (Zeithaml, Parasuraman, & Malhorta, 2002).
While early in the development of e-government services, issues
of accessibility were troubling and while some issues do remain,
there is a new awareness raised by scholars like Bertot and Jaeger
(2006).
While the literature is not as robust as we would like to see, the
authors believe this manuscript will begin to provide a conceptual
foundation examining what is necessary for determining quality of
e-government services. The provision of such a study will further
enhance the e-government's ability to exploit and further attract
more citizens to make their transactions through the web.
The objective of this study is to develop and validate an instru-
ment to measure citizens' perceptions of service quality from e-
government sites or portals. Throughout this article we describe the
development, refinement, psychometric evaluation, potential appli-
cations and limitations of a multiple-item scale (e-GovQual) for mea-
suring e-government service quality of governmental sites, where
citizens seek either information or service. As already noticed by
Aladwani and Palvia (2002) there are three generic steps common
in all models' construction and verification that include (1) conceptu-
alization, (2) design, and (3) normalization. In the first step a model is
conceptualized after an extensive literature survey. The second step
focuses on construct validity and reliability analysis. In this step the
refining of the sample of items takes place—in order to come up
with an initial scale—deciding on such operational issues as question
types and question sequence. The third and last step concerns the
effort to normalize the scale that has been developed. It involves the
important steps of subsequent independent verification and valida-
tion. In our research's first step, conceptualization, after an extensive
literature review as provided in Section 22, we classified 33 e-
government quality attributes under six main quality dimensions:
Ease of Use, Trust, Functionality of the Interaction Environment, Reliability,
Content and Appearance of Information, and Citizen Support. After creat-
ing the conceptual model we needed to confirm whether the quality
indicators selected describe the construct of e-government service
quality. As a next step, a questionnaire based on these criteria was
designed to elicit and assess information on preferences of the citi-
zens when evaluating e-government service and governmental web-
sites. The scale was produced following guidelines for measurement
development proposed by Churchill (1979). In order to refine and
evaluate the scale to measure e-government quality we collected
630 responses via an online survey that took place from February
to June of 2007. We refined the scale, tested its reliability, and looked
for a stable factor structure that resulted in 21 quality attributes clas-
sified under four quality dimensions: Reliability, Efficiency, Citizen
Support and Trust (e-GovQual). A second online survey with 264
respondents took place from November 2007 to February 2008 in
order to verify, validate, and finally to confirm the scale. This instru-
ment developed under the above process would be valuable to
researchers and practitioners interested in designing, implementing,
and managing governmental websites.
The rest of the paper consists of five sections. The next
section reviews prior research related to e-government, e-service
quality, website quality, portal quality, and service quality measure-
ments; the third section includes the conceptualization of the
Government Information Quarterly 29 (2012) 98–109
⁎ Corresponding author. Fax: + 30 210 7723550.
E-mail addresses: xpg@central.ntua.gr (X. Papadomichelaki),
gmentzas@mail.ntua.gr (G. Mentzas).
1
Fax: +30 210 7723550.
0740-624X/$ – see front matter © 2011 Elsevier Inc. All rights reserved.
doi:10.1016/j.giq.2011.08.011
Contents lists available at SciVerse ScienceDirect
Government Information Quarterly
journal homepage: www.elsevier.com/locate/govinf