This research proposes the model that comprises five variables: Perceived usefulness, Perceived ease of use, Attitude, Subjective norm and Perceived behavioural control.. The results rev
Trang 1UNIVERSITY OF ECONOMICS HO CHI MINH CITY
International School of Business
MASTER OF BUSINESS (Honours)
Ho Chi Minh City – Year 2014
Trang 2
UNIVERSITY OF ECONOMICS HO CHI MINH CITY
International School of Business
MASTER OF BUSINESS (Honours)
SUPERVISOR: PHAM QUOC HUNG
Ho Chi Minh City – Year 2014
Trang 3TABLE OF CONTENTS
ABSTRACT………1
CHAPTER 1: INTRODUCTION 2
1.1 Background to the study 2
1.2 The advantages of electronic banking services 4
1.3 Difficulties in implementing internet banking service 4
1.4 Problem statement 5
1.4.1 Potential factors can improve the development of electronic banking services 5
1.4.2 The reality of electronic banking using and problem statement 7
1.5 Research objective 8
1.6 Limitation 8
1.7 Implication 8
1.8 Structure of Thesis 9
1.9 Summary 10
CHAPTER 2: LITERATURE REVIEW AND HYPOTHESES 11
2.1 The relevant theories 11
2.1.1 The theory of reasoned action 11
2.1.2 Theory of planned behaviour 13
2.1.3 Technology acceptance model 14
2.2 Research model and hypotheses 16
2.2.1 Perceived usefulness 16
2.2.2 Perceived ease of use and perceived behavioural control 18
2.2.3 Subjective norm and attitude 19
2.2.4 The moderating role of perceived behavioral control 20
CHAPTER 3: METHODOLOGY 22
Trang 43.2 Questionnaire development 23
3.2.1 Measurement scales 23
3.2.1.1 Measurement of perceived usefulness and perceived ease of use 23
3.2.1.2 Measurement of attitude 24
3.2.1.3 Measurement of subjective norm 25
3.2.1.4 Measurement of perceived behavioural control 26
3.2.1.5 Measurement of intention to use internet banking 26
3.2.2 Building questionnaire 26
3.3 Description of the pilot study 27
3.4 The sample 28
3.5 Methods of data analysis 29
3.5.1 Reliability 29
3.5.2 Exploratory factor analysis 29
3.5.3 Regression analysis 30
3.5.3.1 The Path model 30
3.5.3.2 Simple linear regression and multiple linear regression 31
3.6 Chapter summary 32
CHAPTER 4: DATA ANALYSIS AND RESULTS 33
4.1 Descriptive analysis 33
4.2 Measure scale assessment 33
4.2.1 Reliability analysis 33
4.2.1.1 Reliability analysis for perceived usefulness 33
4.2.1.2 Reliability analysis for perceived ease of use 34
4.2.1.3 Reliability analysis for attitude 34
4.2.1.4 Reliability analysis for subjective norm 34
4.2.1.5 Reliability analysis for perceived behavioural control 35
Trang 54.2.1.6 Reliability analysis for intention to use internet banking 35
4.2.2 Exploratory factor analysis 35
4.2.2.1 Condition for exploratory factor analysis 35
4.2.2.2 Results of exploratory factor analysis 36
4.3 Testing the hypothesis 37
4.3.1 Regression Model 1 37
4.3.2 Regression Model 2 38
4.3.3 Regression Model 3 40
4.3.4 Regression Model 4 40
4.3.4.1 Solving the moderator 40
4.3.4.2 Analysis result 41
CHAPTER 5: CONCLUSION 44
5.1 Overview 44
5.2 Main findings 44
5.3 Practical implications 45
5.4 Limitations 46
REFERENCES 46
APPENDIX 48
APPENDIX 1 54
APPENDIX 2 59
APPENDIX 3 62
APPENDIX 4 64
APPENDIX 9 65
APPENDIX 6 66
APPENDIX 7 69
Trang 6APPENDIX 9 78
Trang 7ABSTRACT
Vietnam economy and bank system had to face many difficulties in 2011 and
2012 This challenge opens a new trend for banks Electronic banking is a modern service
that banks armed to gain market and improve profit Since, many financial institutions are
fostering to provide many banking services to customers via the mobile phone, computers
that are connected internet Financial transactions are conducted via electronic banking
have lower cost and faster speed than physical transactions However, the number of
people who decide to adopt and use such technologies is still low, particularly in Ho Chi
Minh City Hence, there is a need to identify relevant factors that influence the adoption
and usage of Internet banking in HCMC Technology Acceptance Model (TAM) and
Technology of Planed Behaviour (TPB) are two basic models to investigate the adoption
and usage of Internet banking This research proposes the model that comprises five
variables: Perceived usefulness, Perceived ease of use, Attitude, Subjective norm and
Perceived behavioural control The results reveal that Perceived usefulness, Perceived
ease to use, Attitude, Subjective norm and Perceived behavioural control have a
significant association with the adoption and usage of Internet banking The research
result has been a finding so that based on it, leaders of commercial banks will make an
effective strategy to enhance customer satisfaction and improve operational efficiency
Contributions of this study are a basis for researchers, students for developing
further research to practical applications
Key words: Perceived usefulness, Perceived ease of use, Attitude, Subjective
Trang 8CHAPTER 1: INTRODUCTION 1.1 Background to the Study
Banks are important in every country and have a significant effect in supporting
economic development through efficient financial services They provide a mechanical
system to group saving and convert them into investment For over a decade, banks
have been affected by changes associated with globalization and financial
liberalization Reacting to these changes, banks expand the choice of services
offered to the customers and increase their reliance on technology (Smadi and
Al-Wabel, 2011)
Banks have been significantly affected by the evaluation of technology;
competition between banks has forced them to find new market to expand, and the
number of financial institutions that offer electronic banking products increased Hence,
banks have begun to offer electronic banking services to improve the effectiveness
of distribution channels through reducing the transaction cost and increasing the
speed of services
The definition of electronic banking varies among researchers, because electronic
banking refers to types of services through which bank customers can request information
and carry out most retail banking services via computer, television or mobile phone
(Daniel, 1999) Electronic banking is referred to as using of internet as delivery mode for
the provision of services like opening a deposit account, electronic bill payments, and
Trang 9online transfers These services can either be provided by the banks having physical
offices and by creating a website and providing services through that or services can be
provisioned through a virtual bank as well (Sana haider sumra, 2011) Recently,
electronic banking has become the way for the development of banking system, and the
role of electronic banking is increasing in many countries It offers opportunities to
create services processes that demand few internal resources, and therefore, lower cost
As well as it provides wider availability and possibility to reach more customers
From the customers' point of view, electronic banking allows customers easier
access to financial services and time saving in managing their finance (Almazari and
Siam, 2008; Ayrga, 2011; Tan and Teo, 2000) Indeed, the emergence of electronic
banking has prompted many banks to develop marketing and information technology
strategies in order to stay competitive Venkatesh, Morris, and Davis (2003) noted that
the successful implementation of information systems is dependent on the extent to
which such a system is used and eventually adapted by the potential users
Information system implementation is not likely to be considered successful if users
are unmotivated to use that type of technology, and thus it will not bring full benefits to
the organization In order to motivate customers to use electronic banking, banks must
make key improvements that address the customers' concerns
Although Internet banking introduces many benefits for banks and customers;
customers still fear from the risk of electronic banking services Some customers feel
that Internet banking services could make them lose their money Hence, there are still
Trang 10Hiltunen, 2007; Littler and Melanthiou, 2006; Natarajan, Balasubramanian, and
Manickavasagam, 2010) Without understanding what motivates the customers to use
Internet banking services, banks will not be able to take actions to increase the use of
such services Therefore, it is necessary to understand the key factors that influence
the adoption of electronic banking among the banking customers
1.2 The Advantages of Electronic Banking Services:
Electronic banking services have many benefits for both banks and customers
From the customers’ point of view, Aladwani (2001), found that electronic banking
provide faster, easier and more reliable services to customers Payment services through
Internet banking, customers can conduct banking transactions do not need go to the bank,
not restricted by geographical area They can sit at home to ordering, purchase a variety
of goods and services quickly Those services help customer saving time and costs
For banks, Internet banking is conceded a strategy weapon; help them to achieve
competitive advantage and increase their market share Furthermore, using Internet
services can save the cost of resources, which are needed for traditional baking services
(Jayawardhena and Foley, 2000)
The number of individual customers using the internet and online payment via the
internet is increasing In particular, the young customers can adaptable easily the new
information technology The commercial banks also save operating costs in counting and
storage of cash
1.3 Difficulties in Implementing Internet Banking Service
Trang 11Vietnamese are afraid when dealing online In particular, a number of Vietnam
enterprises still consider with the payment service via Internet banking, do not have the
habit of Internet banking transactions Some customers concern about the safety of
payment transactions through Internet banking channels
Age factor, the older customer has limited to access new technologies and use of
banking services on the computer as well as on mobile phone
Social factor, the habit of using cash is a major obstacle
Legal factor, whether Internet transaction law was effect, but crime in this area has
not been discuss in detail
The commercial banks need to invest in technology and infrastructure for effective
implementation of Internet banking services Some banks have not invested properly, so
infrastructure cannot meet the demand for payment transactions, sometimes happens the
interrupt of customer transactions
1.4 Problem Statement
Internet banking is popularly known is the recent trend in banking transition and
holds a bright future that is promising over and above the one brought by Internet
banking Internet banking provided personalized, anytime - anywhere banking services
Nevertheless, with all the laudable benefits of Internet banking, it is yet to gain larger
scale adoption, especially in the emerging economies
1.4.1 Potential Factors Can Improve the Development of Electronic Banking Services
Trang 12According to the State Bank of Viet Nam, the rate of cash payment per total means
of payment has declined over 9 years (from 31.6% in 1991 to 11.8% in 2012) This is an
important prerequisite for the development of electronic payment services in Vietnam
See it more clearly in appendix 3
The rate of non-cash payment is more and more increasingly However, both the
proportion and the value of payment with bankcard were still very low when comparing
with other payment means This rate was 0.2% in total non-cash payment
The Development of Personal Accounts:
According to Vietnam Bank Card Association, the development of personal
accounts in Vietnam was very high, 124% average growth per year over the period
2006-2011 At June 30, 2011, the commercial banks have issued 36 million personal accounts,
for 17 million people (about 20% of Vietnam's population)
The Bank Card Market
The bank card, especially the domestic debit card has became a popular payment
mean It has developed rapidly in recent years The amount of card that was issued on
june 30th, 2012 got 47.22 million Especially, the rate of debit card got 94%
The increasing of bank card became the potential opportunity for bank in
improving the Internet banking services See it more clearly in 3
The System of ATM (Automated Teller Machine) and POS (Point of Sale)
The equipment network that served payment through card was improved
obviously The amount of ATM and POS machine increased considerably There were
13,920 ATM machines and 89,957 POS machines on june 30th, 2012 See it more clearly
Trang 13in appendix 3
*The Development of Electric Means:
The amount of mobile phone subscriber and internet user increased quite
regularly, this was a good opportunity for developing electronic banking services through
mobile phone and internet See it more clearly in appendix 3
1.4.2 The Reality of Electronic Banking Using and Problem Statement
Although, the developing Internet banking of banks met many advantages, the
outcome of this business activity was still modest According to the commercial banks
survey of Nielsen Vietnam in August 2011, there are less than 3% banking customers
using Internet banking services This figure is still very low when compare with
developed nations in Asia It means that Internet banking service in Vietnam is a
potential market in future The Internet banking payment market has developed more
strongly At the end of March 2012, the amount of Internet banking user increased 35%
compared with 2010 However, this improvement was not really corresponding to the
above potential factors of Vietnam, especially in HCMC Ho Chi Minh City was the area
that held over one-third the financial and monetary activity market share of Vietnam So,
the above statistics of Vietnam also could represent the statistics of HCMC The
following figure showed the internet users that used internet to carry out financial
transaction were the lowest level See it more clearly in appendix 3
During the last ten years, there was many studies concerning about the adaption
and usage of Internet banking (Chan and Lu, 2004; Jayawardhena and Foley, 2000;
Trang 14Yiu, Grant, and Edgar, 2007) However, most of these studies focused on the West and
the United States In contrast, little is written in developing countries (Al-Somali,
Gholami, and Clegg, 2009; Jabnoun and Al-Tamimi, 2003) In Asian region, most
studies concentrated to developed Asian countries (Singapore, Hong Kong, Taiwan,
Malaysia, etc…) than developing countries like Vietnam, Lao, Cambodia
In Vietnam, Internet banking services are still in the initial stages of development
Thus, there is a need to study and understand users’ acceptance of Internet banking
services in order to identify the factors affecting the adoption of Internet banking
As a result, there is a necessity to research about the intention to use Internet
banking in Ho Chi Minh City, Vietnam The finding of this study can help the marketers
in the banking sector offer more suitable marketing strategies in their field in order to
make higher attractiveness with Internet banking service
1.5 Research Objective
Specifically the objective of this study is to investigate and validate the factors
influencing the adoption and usage of Internet banking
The purpose of this study is to investigate and validate the factors influencing the
adoption and usage of Internet banking in Ho Chi Minh City, Vietnam The study will
investigate these factors by using two different models: Technology Acceptance Model
(TAM) and Theory of Planed Behaviour (TPB) The finding of this research may support
some important information for leaders or marketers in doing their marketing strategies in
banking industry Marketers may base on these hypotheses to build suitable marketing
plans for customers in Viet Nam
Trang 151.6 Limitation
This study is conduct in Ho Chi Minh City, one of the biggest economic centers of
Vietnam The research object is the customers who are using the bank account, has
registered to use Internet banking service Due to limited time and cost, the research
surveyed about 400 customers of banks in HCMC
The data are collected in Ho Chi Minh City, one of the biggest economic centre of
Viet Nam However, there are still some differences from other provinces such as culture,
income, knowledge… So, the result of research just can undertake in the Ho Chi Minh
City market
The research will assess only in the adaption and usage of Internet banking The
other factors such as the priority in choosing the bank, other services in banking… are out
of the topic of this research
1.7 Implication
This study has important implications for both practical business (leaders of
commercial banks, marketing managers…) and academic (researchers, students of the
business administration department…) as follow:
The research result has been a finding so that based on it, leaders of commercial
banks will make an effective strategy to enhance customer satisfaction and improve
operational efficiency Marketing managers will consider to set up an appropriate
communicate strategy
The results of this study are a basis for researchers, students for developing further
Trang 161.8 Structure of Thesis
This thesis concludes five chapters
Chapter 1 provides an introduction to Internet banking services and sets out the objective
and significance of this research
Chapter 2 literature review and hypotheses
Chapter 3 methodology
Chapter 4 data analysis and results
Chapter 5 conclusion
1.9 Summary
The thesis begins the introduction by discussing the research background and
importance of Internet banking in business and banking industry Then the problem
statement was defined to take a closed look at using electronic banking in Viet Nam
Finally, this chapter discussed the research implications The most important
thing to remember is that Internet banking provide vast amount of opportunities to the
commercial banks and customers This is a fact acknowledged all over the world, and not
the least in HCMC where mobile usage and computer technology in general are very
popular
Trang 17CHAPTER 2: LITERATURE REVIEW AND HYPOTHESES 2.1 The Relevant Theories
2.1.1 The Theory of Reasoned Action (TRA)
The Theory of Reasoned Action (Ajzen, 1975) posits that individual behaviour is
driven by behavioural intentions where behavioural intentions are a function of an
individual's attitude toward the behaviour and subjective norms surrounding the
performance of the behavior: Behavioural Intention = Attitude + Subjective Norm In
short, if a person's attitude and subjective norms are known, the behavioural intention can
be predicted
Figure 7: Theory of Reasoned Action
Attitude toward the behaviour is defined as the individual's positive or negative
feelings about performing a behaviour
Subjective norm is defined as an individual's perception of whether people
important to the individual think the behaviour should be performed
Theory of Reasoned Action suggests that a person's behaviour is determined by his/her
Trang 18intention to perform the behaviour and that this intention is, in turn, a function of his/her
attitude toward the behaviour and his/her subjective norm The best predictor of
behaviour is intention Intention is the cognitive representation of a person's readiness to
perform a given behaviour, and it is considered to be the immediate antecedent of
behaviour This intention is determined by three things: their attitude toward the specific
behaviour, their subjective norms and their perceived behavioural control The theory of
planned behaviour holds that only specific attitudes toward the behaviour in question can
be expected to predict that behaviour In addition to measuring attitudes toward the
behaviour, we also need to measure people’s subjective norms – their beliefs about how
people they care about will view the behaviour in question To predict someone’s
intentions, knowing these beliefs can be as important as knowing the person’s attitudes
Finally, perceived behavioural control influences intentions Perceived behavioural
control refers to people's perceptions of their ability to perform a given behaviour These
predictors lead to intention A general rule, the more favourable the attitude and the
subjective norm, and the greater the perceived control the stronger should the person’s
intention to perform the behaviour in question
The model has some limitations including a significant risk of confounding
between attitudes and norms since attitudes can often be reframed as norms and vice
versa A second limitation is the assumption that when someone forms an intention to act,
they will be free to act without limitation In practice, constraints such as limited ability,
time, environmental or organisational limits, and unconscious habits will limit the
freedom to act TPB attempts to resolve this limitation
Trang 192.1.2 Theory of Planned Behaviour (TPB)
The theory of planned behaviour (TPB) was developed by Ajzen in 1988 The
theory proposes a model which can measure how human actions are guided It predicts
the occurrence of a particular behaviour, provided that behaviour is intentional The
theory of planned behaviour extended the theory of reasoned action to explain
behavioural conditions not entirely under volitional control, and stressed the influence of
attitude, subjective norms and perceived behavioural control beliefs on behavioural
intention and actual usage It was also used by Liao et al (1999) in the context of virtual
banking adoption and only partially explained the relationships
The model is out lined in the next figure and represents the three variables which
the theory suggests will predict the intention to perform a behaviour The intentions are
the precursors of behaviour Ajzen and Fishbein formulated in 1980 the theory of
reasoned action (TRA) This resulted from attitude research from the Expectancy Value
Models Ajzen and Fishbein formulated the TRA after trying to estimate the discrepancy
between attitude and behaviour
This TRA was related to voluntary behaviour Later on behaviour appeared not to
be 100% voluntary and under control, this resulted in the addition of perceived
behavioural control With this addition the theory was called the theory of planned
behaviour (TPB)
Because behaviour can be deliberative and planned, the theory of planned
behaviour is a theory which predicts deliberate behaviour
Trang 20Figure 8: The Theory of Planned Behaviour
The variable names in the model reflect psychological constructs and so they have
the meaning within the theory
2.1.3 Technology Acceptance Model (TAM)
The Technology Acceptance Model, developed by Davis, Bagozzi and Warshaw
(Davis 1989; Davis et al 1989), replaced the attitude measures of Fishbein and Ajzen's
theory with two technology acceptance measures: perceived ease of use and perceived
usefulness
Perceived usefulness is defined as the degree to which a person believes that the
use of a system will improve his performance Perceived ease of use refers to the degree
to which a person believes that the use of a system will be effortless The term 'external
variables' is used to describe all system design features which have a direct influence on
perceived usefulness and perceived ease of use Similar to the Theory of Reasoned
Action, users' perceptions determine the attitude towards using the information system
This attitude determines the intention to use, which in turn leads to actual system use
Figure 9 shows an overview of the Model According to Dishaw and Strong (1999), there
Trang 21are two key differences between the Model and the theory of reasoned action The first
defines perceived easeof use and perceived usefulness as external variables to determine
the intended use rather than the actual use The Model also does not include subjective
norms Lin (2007), based on data from Taiwanese online bookstores, gives an empirical
comparison of the theory of reasoned action with the theory of planned behaviour in
regard to aptness of explaining consumer intentions to shop online The theory of planned
behaviour extended the theory of reasoned action to explain behavioural conditions not
entirely under volitional control, and stressed the influence of attitude, subjective norms
and perceived behavioural control beliefs on behavioural intention and actual usage It
was also used by Liao et al (1999) in the context of virtual banking adoption and only
partially explained the relationships
Figure 9: Technology Model Acceptance by Davis et al (1989)
2.2 Research Model and Hypotheses
Trang 22The Proposed Research Model
Based on the theoretical models developed, this research proposes the above
model with regard to the adoption of internet banking This model shows the relationship
between intention to use and fives components including perceived usefulness, perceived
ease to use, attitude, subjective norm and perceived behavioural control In this proposed
model, attitude towards using internet banking mediates the relationship between four
variables: Perceived usefulness, perceived ease of use, subjective norm and intention to
use
2.2.1 Perceived Usefulness (PU)
Perceived usefulness is defined as “the degree to which a person believes that
using a particular system would enhance his or her job performance” (Davis, 1989, p
320) In general, when the users found that the system is useful for them, then they will
have the intention to use it and lead to the actual usage of the system Based on previous
Trang 23research using the TAM model, it is found that perceived usefulness is the primary
antecedent that determines the behavioural intention (Davis, 1989; Venkatesh & Davis,
2000) Furthermore, the perceived usefulness was found to significantly predict
perceived behavioural control in term of electronic services (Horst et al., 2007) So, this
research hypothesizes the following hypothesis:
H3a: Perceived usefulness positively related to perceived behavioural control
Finally, Davis (1989) has supported that the cognitive dimension includes
perceived usefulness and perceived ease of use and they are the most important factors
influencing attitudes Perceived usefulness and perceived ease of use affect a user's
attitude about the use of a new technology So, the hypothesis shows the relationship
between perceived usefulness and attitude is proposed:
H1a: Perceived usefulness positively related to attitudes towards the use of internet banking
Actually, Internet banking product that gives by banks always has its usefulness
However, when customer perceives it usefulness or think that its utilities can enhance
customer’s job performance they will have a positive feeling The feeling about job
performance is also customer’s attitude towards using Internet banking
In my own opinion, perceiving the Internet banking’s usefulness can improve the
Perceived behavioural control Because, when Internet banking can enhance the job
Trang 24performance, customer will try to fulfill their ability to use Internet banking proficiency
So, perceived usefulness has a positive relationship with Perceived behavioural control
2.2.2 Perceived Ease of Use (PEOU) and Perceived Behavioural Control (PBC)
Perceived ease of use is defined as “the degree to which a person believes that
using a particular system would be free from effort” (Davis, 1989, p 323) All else being
equal, an application perceived to be easier to use is more likely to be accepted by the
users (Davis, 1989) A considerable of prior studies supported the significant effect of
perceived ease of use on behavioral intention, either directly or indirectly through
perceived usefulness and attitude (e.g., Davis et al., 1989; Jackson et al., 1997;
Venkatesh, 1999) This study seeks to reuse such relationships in the context of internet
banking Accordingly, this research hypothesizes that:
H1b: Perceived ease of use positively related to attitudes towards the adoption and usage of internet banking
One more important definition is perceived behavioural control, which reflects
perceptions of internal and external constraints on behavioural (Ajzen 1985, 1991)
Otherwise, perceived behavioural control mentions people's perceptions of their ability to
perform a given behavior Most studies find a positive effect of perceived behavioral
control (PBC) on behavioral intentions In addition, Pavlou (2006) indicate that the
perceived ease of use of searching for online information and making an online purchase
correlates highly with the PBC of both behaviors (r = 43, r = 52, respectively) Other
Trang 25researchers similarly reveal strong correlations between PEOU and PBC (Yi et al 2005)
Based on above theories, this study shows the following hypothesis:
H3b: Perceived ease of use positively related to perceived behavioral control toward the adoption and usage of internet banking
There is also some discussions about two hypothesizes When customers think
Internet banking is simple and easy to use with them, they will improve their
performance by using IB Hence, the higher perceived ease of use, the higher level of
Perceived behavioral control and attitude towards intention to use IB
2.2.3 Subjective Norm and Attitude
Subjective norm reflects perceptions that significant referents desire the individual
to perform or not perform a behavior (Fishbein and Ajzen, 1975) In another words,
subjective norm also gives an individual's perception of whether people important to the
individual think the behaviour should be performed Hee Sun Park (2000) found that
attitudes and subjective norms have a significant relationship Besides, Attitude toward
the behaviour is defined as the individual's positive or negative feelings about performing
a behaviour (Ajzen, 1975).Attitude toward behavior refers to the degree to which a
person has a favourable or unfavourable evaluation or appraisal of the behavior in
question (Ajzen, 1991, p.188) Attitude towards usage reflects feelings of favourableness
or unfavourableness towards using the technology (Taylor and Todd, 1995) The TPB
declares that behavior is a direct function of behavioural intention and perceived
Trang 26behavioural control and this behavioural intention is constituted by one’s attitude and
subjective norm (Taylor and Todd, 1995) So, TPB demonstrated the impact of attitude
on intention to use internet banking Hence, based on above theories, this study shows
two following hypotheses:
H2: Subjective norm positively related to attitude towards using internet banking
H4: Attitude will positively related to intention to use internet banking
Basing on positive experience, most of customer also ask someone who important
with them before deciding to buy or use something For example: friend, co-worker,
family who used to buy that product or service A good comment will foster customer’s
attitude towards using IB So, excepting other aspects, subjective norm positively related
to attitude Certainly, a good feeling about job performance also have positively relate to
intention to use IB
2.2.4 The Moderating Role of Perceived Behavioral Control:
The definition of perceived behavioral control has been mentioned in above part
So, this paragraph just focuses on the moderating role of perceived behavioral control
With the moderating role, perceived behavioral control determines the strength of the
relationship between attitude and intention to use internet banking
A moderator is a variable that influences the strength or the direction of a
relationship between a predictor variable and an outcome variable (Grayson et al., 2004)
Trang 27Ajzen's (1991) study explores that perceived behavioral control improves intention in
relation to positive attitudes and subjective norms However, Eagly & Chaiken (1993)
argue that PBC produces positive intention when an individual forms a positive attitude,
but not when an individual form a negative attitude Their investigation shows that people
will not perform the behavior if they are confident to do so Therefore, there is a
possibility that PBC moderate attitudes and normative effects of intention Hence, the
above theories support this hypothesis:
H5: Perceived behavioural control moderates the relationship between attitude towards using internet banking and intention to use internet banking
See appendix 9 to have the total view of definition that are mentioned in this chapter
Trang 28CHAPTER 3: METHODOLOGY
This session gives the research methodology that uses to test the mentioned
research model It presents the research design, development of survey questionnaire,
quantitative study, and main survey It also defines how to collect data and the way
analyses the collected data to test the proposed research hypotheses
3.1 Research Design
This study used two research methods The first phase, qualitative research
identifies the models, factors, suitable measurement variables for research in HCMC
Through the previous relevant researches, the questionnaire was built then running the
pilot study for checking the efficiency and the meaning of the questions The pilot study
was purposed to explore and define the relevant items and building a completed
questionnaire The second phase, main survey was the main approach of this study The
goal is to identify the factors affecting customers’ intention to use Internet banking
service Nguyen (2007), Churchill (1979) and Steenkamp & van Trijp (1991) given the
process that built and accessed the scale Basing on those researches and the background
of this study, the research process included the steps as illustrated in the following figure:
Trang 293.2 Questionnaire Development
3.2.1 Measurement Scales
The measurement scales used in this study was multi-item five point Likert scales,
which developed and validated by previous researches (Davis et al, 1989); Igbaria et al,
1997; Fishbein & Ajzen, 1975; Taylor & Todd, 1995; Chua, 1980 and Ajzen, 1991) The
following items in this table are the foundation for building questionnaire
3.2.1.1 Measurement of Perceived usefulness and Perceived ease of use
Perceived usefulness and ease of use are important technology adoption
Trang 30previous study has shown that perceived usefulness and perceived ease of use are
determinants of intention to use mobile services (Igbaria et al., 1997)
Basing on Davis et al (1989), Igbaria et al (1997), Nguyen and Barrett (2006) and
others studies, these variables with a five-point Likert scales were primarily used to
measure customer‟s intention to use Internet banking Perceived usefulness was
measured by six items and perceived ease of use was measured by five items The
folowing table shows items that measure two above variables
Scale of Perceived usefulness and Perceived ease of use
Construct Coding of variables Items Adapted from
Perceived
usefulness PU1
Internet banking (IB) helps me
save my time (Davis, 1989), (Davis et
al., 1989), Nguyen and Barrett (2006), (Venkatesh & Davis, 2000), (Lederer et al., 2000), (Luarn & Lin, 2004), (Wang et al., 2003), (Igbaria et al ,1997), (Fishbein & Ajzen, 1975)
PU2 Help me complete my banking
transactions faster PU3 Help me enhance the efficiency
of my banking transaction PU4 Help me to do my banking
transactions easier PU5 Using IB is fit for my work PU6 IB is very useful Perceived ease of
I feel easy when learning to use
IB
(Davis, 1989), (Davis et al., 1989), Nguyen and Barrett (2006), Igbaria
et al (1997), Taylor and Todd (1995)
PEOU2 It was easy to become skilful at
using IB PEOU3 IB help me do every transaction
I want PEOU4
My interaction with interface of
IB system is clear and understandable PEOU5 IB is easy to use
3.2.1.2 Measurement of Attitude
Measurement of attitude towards using intention to use Internet banking was based
Trang 31on the Taylor and Todd (1995) scales Attitude was measured by four five-point Likert
items Making the measurement of attitude is more clearly, the same scales to measure
this contruct also were found in studies such as, Triandis (1977) and Bagozzi (1984),
Fishbein and Ajzen (1975) The following table shows more clearly each item and its source
Scale of Attitude
Construct Coding of variables Items Adapted from
Attitude ATT1 I think use IB would be
a good idea
(Fishbein & Ajzen, 1975), Triandis (1977) and Bagozzi (1984), Taylor and Todd (1995)
ATT2 I think use IB is a wise
decision ATT3 I like to use IB ATT4 Using IB services is an
exciting idea
3.2.1.3 Measurement of Subjective norm
Subjective norm was measured by five items, it based on the five-point Likert
scales that developed by researchers such as, Taylor and Todd(1995), Chua (1980), Nor
and Pearson (2007)
Scale of Subjective norm
Construct Coding of variables Items Adapted from
Subjective norm SN1 My friends would think
that I should use IB
Taylor and Todd (1995), Chua(1980), Nor and Pearson(2007) SN2 My family would think
that I should use IB SN3 People important to me
would think that using
IB is a good idea SN4 People who influence
my decisions think that I should use IB SN5 I use IB because I know
it through many media facilities
Trang 323.2.1.4 Measurement of Perceived behavioural control
Previous research studying technology adoption and usage behavior has related
perceived behavioural control primarily to constraint to technology usage (Taylor and
Todd, 1995), especially the ease or difficulty of using the new technology This construct
was measured by three five-point Likert items, developed Taylor and Todd (1995), Shih
IB
3.2.1.5 Measurement of Intention to Use Internet Banking
Intention to use Internet banking was measured by four items, developed by Ajzen
(1991) This construct used a five-point Likert scale, and modified by the researchers as
follow:
Construct Coding of variables Items Adapted from
Intention to use Internet
banking
IT1 I intend to use IB
Ajzen (1991), Taylor and Todd (1995)
IT2 I have the plan to use IB IT3 I want to use IB IT4 I decide to use IB
So, there are twenty seven items in this section and all these items were measured
by a five-point Likert scale from1 = strongly agree to 5 = strongly disagree
3.2.2 Building questionnaire
The questionnaire with a five-point Likert scale was used to collect the data for
researching the proposal model In another word, the tool for collecting data is
Trang 33questionare and a structured questionare is used in quantitative research method A good
questionnaire helsps researchers to collect high reliable data (Nguyen, 2011) Items
selects for explaining the concept are mostly adapted from previous studies to ensure the
validity Observed variables measuring perceived usefulness, ease of use, attitude,
subjective norm, perceived behavioral control, and intention to use was taken from
previousstudies
The questionnaire contains three main sections:
Section 1: General information to get the basic information about the respondent (using
bank account, Internet banking) This information chooses the target respondent to study
Section 2: The main part includes questions which are based on a scale of measurement
was proposed for the research The items were measured on the Likert 5-point scale from
1 to 5 (strongly agree, agree, neutral, disagree, and strongly disagree)
Section 3: Questions get information about demographics characteristics of respondent
Finally, the survey questions were translated from English to Vietnamese by the
researcher
3.3 Description of the pilot study
Because the scale of research are adopt from the scales of the previous
researches, that was conduct in different culture, the level of economic development and
selected respondents According to Nguyen (2007), most of the scales have been used
widely in the past, this step is important because of the difference in the research setting
So, the pilot study was conduct through quantitative research method The purpose is to
Trang 34respondents can understand the Vietnamese questionnaire more clearly, avoid confusion
To conduct quantitative research, the pilot test is conduct in Ho Chi Minh City by
face-to-face interview The 60 questionnaires (translated to Vietnamese language) were sent
to customers for answering After that, the forms have been returned for the pilot test
Some changes on the questionnaire fits with understand of respondents and make clear
for the questions (in Vietnamsese language)
The scales were assessed by Cronbach’s alpha and exploratory factor analysis
Considering the reliability, we had to delete 4 items of Perceived ease of use concept, 1
item of Attitude concept, 2 items of Subjective norm concept due to its low item-total
correlation < 0.30 (Nunnally and Bernstein, 1994)
Furthermore, the cumulative Extraction Sums of Squared Loadings=72.568%
means from variables we can choose 6 factors that can representative for all variables and
the ability of representative is 72.568%, it is quite good (we can accept the factor analysis
when this value is above 50%) After assessing the scales, the draft questionnaire was
edited for conducting the main survey
3.4 The Sample
The target population is the banking customers who are using individual account,
but not signed up for Internet banking services Two hundred and fifty customers were
sampled from commercial bank in HCMC
In general, the sample size should be 100 or greater (Hair and Anderson, 1998)
For standard multiple regression analysis, Tabachnick and Fidell (2007) showed that a
good level is: n > 50 + 8p (where p =number of independent variables) So, the required
Trang 35sample is: n > 50 + 8*5 = 90
3.5 Methods of Data Analysis
This section was important in assuring the reliability of the constructs and thus
controlling data generated through questionnaires
3.5.1 Reliability
Before testing the validity of the concepts, we carry out testing their reliability
Testing the reliability means testing the consistency or the stable, and Cronbach’s
coefficient alpha is the most commonly used type of internal consistency reliability
Cronbach’s alpha is used as only one criterion for judging instruments or scales It only
indicates if the items “hang together” (George and Malley, 2003)
Cronbach’s alpha checks the internal consistency reliability of scales It checks if
whether the items that make up the scale actually measure the same underlying construct
(Pallant, 2001) For scale to be reliable, its Cronbach’s alpha value should be above 0.6
(George & Mallery, 2003)
The above guideline indicates that the higher the Cronbach’s alpha value is, the
more reliable are the items measuring a give construct Cronbach’s alpha closer to 1.0 is
preferred A Cronbach’s alpha value of 0.9 and above was regarded as the most reliable
of scales, while a scale that has a Cronbach’s alpha value that is below 0.5 is regarded as
unreliable and cannot be used to measure a given construct
3.5.2 Exploratory Factor Analysis (EFA)
Norris and Lecavalier (2010, p.9) supposed that “EFA is based upon a testable
Trang 36indices can be generated to help with model interpretation” and “EFA’s purpose is to
identify latent constructs underlying a set of manifest variables” Hair et al (1998), Lee
& Hooley (2005, p.376) claimed that with samples of 300 or more, a factor loading of the
attribute higher than 0.3 is significant With samples of 200, a factor loading of 0.4 or
greater will take to indicate Therefore, the researchers must carefully consider the
sample size for choosing significant factor loadings Moreover, factors with a total
eigenvalue of 1 or greater will take into account; hence any factor with an eigenvalue of
lessthan 1 is discounted (Lee & Hooley, 2005, p.376) Based on these studies, any factors
with eigenvalues greater than 1 would be retained And any factor loadings of 0.3 or
higher on a factor are counted
3.5.3 Regression Analysis
3.5.3.1 The Path model
In this research, the Attitude variable is a mediator and the Perceived behavioural
control is a moderator All variables are quantitative variables So, this proposal model is
a Path model (Nguyen, 2011)
Considering the Path model, there are 4 multiple regression models
Regression model 1: ATT = f(PU,PEOU,SN) + 1
Regression model 2: PBC = f(PU,PEOU) + 2
Regression model 3: IT = f(ATT) + 3
Regression model 4: IT = f(ATT, ATT*PBC) + ε4
Model 1, 2 and 4 use Multiple Linear Regression (MLR), model 3 uses Simple
Linear Regression (SLR)
Trang 37The main objective of this thesis was to test the hypotheses that were inferred by
theories So, the thesis used Enter method to run regression, this method also was
considered as a confirmatory method
3.5.3.2 Simple Linear Regression and Multiple Linear Regression
Simple Linear Regression considers the relationship between 2 variables: predictor
variable (X) and criterion variable (Y)
Yi = f(Xi) + i
Meyers, Gamst, and Guarino (2006, p.152) and Hair et al (2010, p.156) proposed
that the multiple regression standardized score equation is as follows (with all the
variables are measured on the same metric):
Y = β1X1 + β2X2 + … + βnXn
Where in: β is called beta weight, standardized regression coefficient, or beta
coefficient
X is the predictor entered into the equation in a single step
βX represents the score of a predictor and its associated beta weight
In addition, Hair et al (2010) claimed that there is the difference between the
actual and predicted values of dependent variable That means the random error will
occur when predicting sample data It is called the residual (ε or e)
Based on these studies, the multiple regression formula will be: Y = a + β1X1 +
β2X2 + … + βnXn + ε Moreover, Meyers et al (2006, p.161) introduced the value of
R2 indicating how much variance of the dependent variable is accounted for by the full
Trang 38power of the regression equation (Hair et al., 2010)
3.6 Chapter summary
After collected data was be cleaned, remove the invalid questionnaires and data
will be processed using software SPSS 16.0 (Statistical Package for Social Sciences)
Collected data was analyzed and interpreted in a series of stage First, the demographic
profile of respondents was summarized Second, the reliability of the items used in
measuring the constructs was validated using Cronbach’s alpha Third, using EFA to
consider the discriminant and validity of the concepts Finally, multiple regression
analysis was used to test the hypotheses and how the variables can explain the dependent
variable (intention to use Internet banking)
Trang 39CHAPTER 4: DATA ANALYSIS AND RESULTS
The purpose of this chapter was to present finding which were collected from the
actual questionnaire survey Beside, the researcher proposed an official assessment of
measures and carried out the analysis to give the accurate answers for the research
questions, hypotheses proposing in the chapter 2
4.1 Descriptive analysis
A total of 400 people were sampled, 258 responses were received and 237
questionnaires were useable for analysis (equal 59.3%) The data was gathered on
personal banking customers of many commercial banks in Ho Chi Minh City, but they do
not use Internet banking services yet The gender distribution of the survey respondents is
45.1% for males and 54.9% for females
The results also indicated that the research samples had age predominantly at 2
groups: 31-40 and 41-50 years Regarding marital status, the single respondents were
28.3%, while married respondents were 71.7% With the education factor, the highest
percentage is the graduate group that accounted for 31.6% The research samples had
income predominantly at 2 groups: 5 Million-10 Million and 11 Million-15 Million
Appendix 4, 6 gives a detailed description of the demographic statistics for the
Trang 40Correlation < 0.3 and after remove PU6 Cronbach's alpha increases from 0.846 to 0.881
Item number 6 has the low correlation with the others, it has not the same direction with
other items and it can not explain the concept
See appendix 7, after deleting the PU6 variable, we have to run again the
reliability statistics
This table shows the result with a quite high Cronbach's alpha (.881 > 6)->
measurement scale is good That means the first concept (Perceived usefulness) can be
explained by 5 items All numbers in the Corrected Item-Total Correlation column > 0.4
and numbers in Cronbach's Alpha if Item Deleted column < 0.881 In this case, each item
that explains the Perceived usefulness concept make a good component of a summated
rating scale
4.2.1.2 Reliability Analysis for Perceived Ease of Use
See appendix 7, all variables are satisfied and are retained to run in the next steps
All numbers in the Corrected Item-Total Correlation column > 4 and numbers in
Cronbach's Alpha if Item Deleted column < 814 Cronbach's alpha (.814 > 6)->
measurement scale is good
4.2.1.3 Reliability Analysis for Attitude
See appendix 7, variables are satisfied and are retained to run in the next steps All
numbers in the Corrected Item-Total Correlation column > 4 and numbers in Cronbach's
Alpha if Item Deleted column < 818 Cronbach's alpha (.818 > 6)-> measurement scale
is good
4.2.1.4 Reliability Analysis for Subjective Norm