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Fig. 6.7 Model for the theory of planned behavior (adapted from Ajzen 2012 )
nonetheless, will have a direct in
uence over the behavior as well as an indirect
relationship with the perception of control.
Although the TPB has proved its validity in a great array of research that
resorted to its framework as a guideline (Ajzen 2012 ), there is still criticism to some
of its aspects. Perceived behavioral control is a particularly dif
cult variable to
measure and pinpoint with precision, and it is not suf
cient to complete the TRA
model because there are many other variables that add to the possibility of pre-
dicting behavior, such as affective evaluation of behavior (Shumaila et al. 2010 ).
However, this was a reality that was already known upon the development of the
TPB, as Ajzen indicated that the model was open to further introduction of new
predictors, providing that those new elements had a decisive in
uence on behavior
determination (Ajzen 1991 ).
6.7 Task
Technology Fit Model (TTF)
-
The task
fit (TTF) model was initially introduced by Goodhue and
Thompson ( 1995 ), and it is focused on the pertinence of technology in terms of task
completion. This model is based on the belief that the adoption of innovative
technology is greatly in
technology
-
uenced by how it suits the demands of a speci
c task. The
 
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