CHAPTER 4 RESEARCH ANALYSIS AND RESULTS
4.3 RELIABILITY AND VALIDITY ANALYSES
4.3.1 RELIABILITY TEST
In this section, the reliability of research constructs was also tested. Reliability refers to the consistency of a measure, whereas internal consistency is that the individual items of a scale should be measuring the same construct and be highly interrelated. The most commonly ways of testing internal consistency are computing Cronbach’s alpha and item-to-total correlation. When the item-to-total correlation is above 0.4 and the reliability coefficient alpha value is above 0.7, the items demonstrate high internal consistency and hence reliability of each dimension (Nunnally and Bernstein, 1994). This study adopted the total sample (n=3132) to test if the measure scales are reliable.
Table 4.7 shows the internal consistency for all research constructs. All items within a factor or a construct have a high coefficient of item-to-total correlation
(0.421 – 0.873), and this suggests a high degree of internal consistency for each dimension. Furthermore, the Cronbach’s alpha value of each construct is high (0.787 – 0.926), which confirms the consistency of the measurement variables.
Table 4.7 Results of Reliability Tests
Items! Description!
Item-to-Total Correlation!
Cronbach's alpha!
E-Service Quality – Ease of Use!
ESQ1! I can find the books what I need by using search engine
easily. 0.665
ESQ2! The site records all the books I have ever browsed, and
it allows me to browse them again conveniently. 0.639 ESQ3! The hyperlinks make it convenient to browse the books
that interest me. 0.723
ESQ6! The site is simple to use.! 0.621
0.953
E-Service Quality – Privacy
ESQ7! There are special measures for protecting information
about my on-line transaction.! 0.65
ESQ9! Advertisements will not be mailed to me without my
permission 0.578
ESQ10! The site has passed a security review and has the secure
symbols. 0.731
0.802
E-Service Quality – Design
ESQ11! The site is attractively designed and is visually
pleasing. 0.752
ESQ12! The display of objectives and graphics is appealed. 0.777 ESQ14! The text and graphics are clear and easy to understand.! 0.679
0.86
E-Service Quality – Information
ESQ15! The information about books is accurate. 0.729 ESQ16! The site provides information about new books. 0.779 ESQ17! The site provides information about best-selling books. 0.761 ESQ18! The information about books is sufficient. 0.705 ESQ19! The site will send an e-mail or message to me to
confirm my book order. 0.637
ESQ21! The site provides complete illustrations for returning
and changing books.! 0.693
0.894
E-Service Quality – Functionality
ESQ22! The site loads its pages quickly. 0.668
ESQ23! It provides the functions for interaction. 0.711 ESQ24! It gives me numerous options of merchandise other
than books. 0.634
ESQ25! It provides numerous premiums, like bonuses and
e-coupon. 0.581
ESQ27! It gives me numerous options for delivery.! 0.613
0.837
Items! Description!
Logistics Service Quality – Information Quality!
LSQ1! The e-map interface lets me choose a pick-up point
conveniently. 0.837
LSQ2! It gives me numerous options to choose the pick-up
point. 0.866
LSQ3! The information of convenience stores on the e-map is
accurate. 0.829
LSQ4! After my books arrived at the convenience store, it will
send a message to remind me to pick up the books. 0.53
0889
Logistics Service Quality – Timeliness
LSQ6! Time between ordering books and receiving books is
short. 0.745
LSQ7! Books arrive on the date promised. 0.745
0.851
Logistics Service Quality – Order Condition
LSQ8! It reliably delivers my books to the convenience store I
chose. 0.733
LSQ9! When I pick-up the books I ordered, the bar code
information is accurate and can be read. 0.744 LSQ11! The books I received are undamaged.! 0.57
0.817
Logistics Service Quality – Personnel Contact Quality
LSQ12! When I pick up, the convenience store staff can quickly
find the books I ordered. 0.771
LSQ13! When I pick up, the convenience store staff have good
manners. 0.814
LSQ15! When there is a problem with delivery, the convenience
store staff can immediately tell me what to do. ! 0.724
0.879
Perceived Sacrifice
SAC1! I think the prices charged for ordering books from this
on-line bookstore are reasonable. 0.611
SAC2! I think ordering books in this on-line bookstore does
not take much time. 0.751
SAC3! I think ordering books in this on-line bookstore is easy. 0.726
0.832
Service Value!
VAL1! I think that the service provided by this on-line bookstore compared to the price I had to pay is acceptable.
0.775 VAL2! I think that it is more worthwhile to use this on-line
bookstore than others. 0.792
VAL3! Compared to the price, I think the service provided by
this on-line bookstore is very valuable. 0.828
0.898
Customer Satisfaction!
SAT1! In general, the service from this on-line bookstore
conformed to my expectations. 0.85
SAT2! In general, I am satisfied with the service that this
on-line bookstore provided. 0.873
SAT3! Shopping on this on-line bookstore is a wise decision. 0.826
0.926
Items! Description!
SC1! I am used to choosing the same on-line bookstore to
order books. 0.421
SC2! I feel troublesome about some procedures for joining a
new on-line bookstore to order books. 0.56 SC3! If I choose another on-line bookstore, the pick-up place
is not convenient for me. 0.605
SC4! If I choose another on-line bookstore, I will lose some
premiums. 0.553
SC5! If I choose another on-line bookstore, I need to spend
some effort to know the service well. 0.685
0.787
Customer Loyalty
LOY1! I will recommend this on-line bookstore to my friends. 0.775 LOY2! If I want to buy books, I will choose this on-line
bookstore first. 0.803
LOY3! I am willing to do other business in this on-line
bookstore. 0.687
LOY4! Compare to other line bookstores, I prefer this
on-line bookstore. 0.775
0.89