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Figure 2. Extended technology acceptance model for biometric technologies
results of the regression imply that an individual's
perceived need for security will positively impact
how useful they feel the biometric device will
be.
Perceived need for security has a negative
significant impact on perceived invasiveness (β =
-.125), supporting hypothesis 7. This implies that
the more secure an individual feels he/she needs,
the less invasive the technology will be viewed.
Perceived need for privacy did not have a
significant impact as expected on perceived
usefulness, therefore did not support hypothesis
8. However, perceived need for privacy impacts
perceived need for security, thus indirectly affect-
ing the perceived usefulness of the device.
The results obtained show a significant effect
(β = 0.64) of perceived need for privacy on the
perceived need for security. The implication of
this relationship is that if an individual feels a
high perceived need for privacy, the individual
will have a high perceived need for security. This
finding supports hypothesis 9.
Perceived need for privacy is shown to have a
significant positive affect on perceived invasive-
ness of the device (β = .108), supporting hypothesis
10. Biometric devices may be viewed as invasions
of privacy due to the personalized physical usage
requirements. Therefore, the implication of the re-
sults obtained is that the more private an individual
perceives themselves to be, the more invasive the
biometric device may be perceived.
disCussion, limitations, and
direCtions For Further
researCh
The results of the statistical tests of the hypotheses
indicate that the additional constructs do signifi-
cantly impact the intention of a user towards bio-
metric devices. Invasiveness is shown to have, as
expected, a significant negative impact on ease of
use as well as intention to use security technology.
As was mentioned in previous research, negative
connotations associated with biometric devices
as well as the obvious physicality of using the
technology will influence the adoption behaviors
of the users. When examining the invasiveness
construct, the influence of the situational contexts
were more apparent. There was a noticeable im-
pact from the vignettes where a retinal biometric
device was employed and to the use of a biometric
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