Information Technology Reference
In-Depth Information
Table 3. Factor analysis
Ease of Use
Alpha = .0
Usefulness
Alpha = .
Trust
Alpha = .0
Questions and problems can easily be addressed
when making purchases over the Internet.
.0
Payment or delivery problems can easily be
rectified with an online vendor.
.0
It is easy to purchase items over the Internet.
.0
Internet shopping makes my life easier.
.0
Placing an order online is easy to do.
.
Shopping on the Internet saves me time.
.
Buying products over the Internet is easier than
purchasing them from a store.
.
Buying things over the Internet is more convenient
.
*I worry about providing financial information when
shopping online.
.
Online retailers have adequate controls to keep
my personal and financial data secure.
.
*I worry about providing personal information
when purchasing items on the Internet.
.
It is safe to use a credit card when purchasing
items over the Internet.
.0
Personal information about me and my buying
habits are kept private when purchasing items
over the Internet.
.0
1 = strongly agree; 2 = agree; 3 = neutral; 4 = disagree; 5 = strongly disagree. * reverse scored
using the Internet per week than those who have
not made a purchase online. It will be important
to control for this difference when evaluating the
proposed model.
The National Service Framework for Older
People makes a clear delineation between seg-
ments of the older community. The active 50
year old has little in common with the frail and
inactive 80 year old. For this reason, the data was
analyzed in aggregate and also by age subgroups.
Table 2 shows the frequency of online purchases
for the total sample and in age subgroups. Fifty-
nine percent of the sample had made at least one
online purchase in the last 6 months. The group
of respondents in their 70s and 80s were the
only two subgroups in which the majority of the
respondents had not made an Internet purchase
in the last 6 months.
Before testing the proposed model it was first
necessary to assess the validity of the multi-item
scales. A total of fifteen questions were asked
to assess attitudes concerning the ease of use,
usefulness and trust related to buying products
online. Two questions regarding ease of use (“Buy-
ing products online is confusing and risky” and
“Internet shopping is useful because products can
be easily found and purchased”) caused spurious
results. When those items were dropped, factor
analysis with VARIMAX rotation indicated there
were three distinct factors. Table 3 contains the
loadings of the questions on each of the three
factors.
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