perpustakaan.uns.ac.id digilib.uns.ac.id
commit to user
27
CHAPTER III RESEARCH METHODOLOGY
A. Research Design
This research tries to explain an effect of perceived mobile value on perceived usefulness and perceived enjoyment on attitude towards using mobile
banking and perceived ease of use with TAM model. It uses quantitative research method with hypothesis test. Sekaran 2000: 108 defines that hypothesis is a
logically conjectured relationship between two or more variables expressed in the form of a testable statement.
B. Population and Sample
Population in this research is bank customers who use mobile banking service in Indonesia. The sample is bank customers who use mobile banking
service who stay in Jakarta. Sample size has an important role for SEM interpretation result. Sample size becomes based on sampling error estimation.
With estimation model using Maximum Likelihood ML, it requires at least 100 samples. When the sample raises more than 100, the ML sensitivity will increase
to detect differential among data. When sample size become large 400-500 samples, ML will be a very sensitive and will always result in significant
differential so goodness of fit measurement will be poor. Ghozali 2008: 64 recommends sample size for ML estimation method is 100-200 samples.
perpustakaan.uns.ac.id digilib.uns.ac.id
commit to user
28
C. Data Source and Data Collecting Technique
This research will use primary data, which is directly obtained from the respondents, with purposive convenience sampling technique. Purposive
convenience sampling is collecting information from members of the population who are conveniently available to provide it. Each respondent will be asked to
give their evaluation about the statements or questions by choosing answers served with a Likert scale ranging from 1 for totally disagreeing to 4 for totally
agree.
D. Measurement Items
Measurement items used in this research particularly for the core constructs six key determinants of the proposed research model have been
adapted from the measurement items originally used in many theories. All original measurement items used in measurements of the core constructs of the
theories or models including perceived mobility value, perceived enjoyment, perceived usefulness, perceived ease of use, attitude toward using, behavioral
intention had statistical explanation and prediction under investigation by Gardner and Amoroso 2004, Huang et al. 2006, and Jogiyanto 2007. The
measurement item can be seen at table III.1.
29
Table III.1 Research Variable
Variable Description Constructs
Type Items Source
Questionnaire
PE Perceived enjoyment
Independent 3
Moon and Kim 2001; Yi and Hwang 2003;
Yu et al. 2005; Huang et al 2006
PE1
Saya akan senang menggunakan mobile banking.
PE2
Mobile banking akan menjadi hal yang menarik.
PE3
Mobile banking akan membuat saya merasa baik.
PMV Perceived mobility
value Independent 4 Huang
et al
2006 PMV1
Saya tahu bahwa perangkat mobilitas handphone, laptop, dsb adalah media untuk mobile banking.
PMV2
Saya merasa mudah mengakses mobile banking di mana saja dan kapan saja.
PMV3
Mobile Banking memungkinkan saya melakukan transaksi pada saat itu juga real time datatransaction.
PMV4
Mobilitas adalah keuntungan utama dari mobile banking.
PU Perceived usefulness
Independent Dependent
6 Davis 1989,
1993; Venkates and Davis
1996; Yang 2005; Huang et al. 2006;
Jogiyanto 2007 PU1
Penggunaan mobile banking dapat mempercepat penyelesaian transaksi.
PU2
Penggunaan mobile banking dapat meningkatkan kinerja saya.
PU3
Penggunaan mobile banking dapat memudahkan pekerjaan saya.
PU4
Penggunaan mobile banking dapat menghemat waktu saya.
PU5
Penggunaan mobile banking dapat meningkatkan efektivitas saya dalam bertransaksi.
PU6
Secara keseluruhan, mobile banking akan sangat bermanfaat.
30
Source: Adopted from Gardner and Amoroso 2004, Huang et al. 2006, and Jogiyanto 2007
Variable Description Constructs
Type Items Source
Questionnaire
PEOU Perceived ease of use
Independent dependent
4 Davis 1989,
1993; Venkates and Davis
1996; Yang 2005;
PEOU1 Menggunakan mobile banking merupakan hal yang
mudah bagi saya. PEOU2
Penggunaaan mobile banking jelas dan mudah dipahami.
Huang et al. 2006;
PEOU3 Penggunaan mobile banking fleksibel.
Jogiyanto 2007
PEOU4 Penggunaan mobile banking tidak membutuhkan terlalu
banyak usaha berpikir.
ATT Attitude toward using
Independent dependent
4 Bagozzi et al. 1992;
Hu et al. 1999; Huang et al 2006;
Jogiyanto, 2007
ATT1 Menurut Saya, mobile banking sangat dibutuhkan.
ATT2 Saya mendapat hasil positif dari mobile banking..
ATT3 Saya ingin menggunakan mobile banking.
BI Behavioral intention
Dependent 5
Gardner and Amoroso 2004:
BI1 Saya memilih menggunakan mobile banking dalam
penyelesaian transaksi saya.
Huang et al. 2006;
BI2 Saya berencana untuk menggunakan mobile banking
untuk penyelesaian transaksi di masa yang akan dating
Jogiyanto 2007
BI3 Di masa depan, saya berniat untuk menggunakan mobile
banking secara rutin. BI4
Jika saya diminta untuk mengungkapkan pendapat saya, saya bermaksud untuk mengatakan sesuatu yang
menguntungkan.
perpustakaan.uns.ac.id digilib.uns.ac.id
commit to user
E. Data Analyze Technique and Hypotheses Test
Kategori