The Theory of Planned Behaviour (TPB) TPB extended TRA by adding the construct of perceived behavioural control. In TPB, perceived behavioural control is theorized to be an additional determinant of intention and behaviour. | Attitude toward Behaviour | Adapted from TRA |
Subjective Norm | Adapted from TRA | |
Perceived Behavioural Control | “The perceived ease of difficulty of performing the behaviour”. In the context of Information System (IS) research, “perceptions of internal and external constraints on behaviour” ( | |
A Model combining The Technology Acceptance Model and Theory of Planned Behaviour (C-TAM-TPB) This model combines the predictors of TPB with perceived usefulness from TAM to provide a hybrid model. | Attitude towards Behaviour | Adapted from TRA/TPB |
Subjective Norm | Adapted from TRA/TPB | |
Perceived Behavioural Control | Adapted from TRA/TPB | |
Perceived Usefulness | Adapted from TAM | |
The Model of PC Utilisation (MPCU) The Model of PC Utilisation (MPCU) derived largely from
| Job-Fit | “The extent to which an individual believes that using (a technology) can enhance the performance of his or her job”. |
Complexity | Based on | |
Long-Term Consequences | “Outcomes that have a pay-off in the future”. | |
Affect Towards Use | Based on Triandis, affect toward use is “feelings of joy, elation, or pleasure, or depression, disgust, displeasure, or hate associated by an individual with a particular act”. | |
Social Factors | Derived from Triandis, social factors are “the individual’s internationalization of the reference group’s subjective culture, are specific interpersonal agreements that the individual has made with others, in specific social situations”. |