Theory of Interpersonal Behavior (TIB)

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Alternate name(s)


Main dependent construct(s)/factor(s)

Behavioral intention, Behavior

Main independent construct(s)/factor(s)

Attitude, Affect, Social factors, Habit, Facilitating conditions, Intention

Concise description of theory

Theory of interpersonal behavior (TIB) was proposed by Harry Triandis in 1977. In contrast to theory of planned behavior (TPB), Triandis recognized the key role of habit and emotions in forming intentions to perform a behavior. Accordingly, he proposed an integrated model of interpersonal behavior which posits that behavior, in any situation, is a function of intention (consistent with other behavior models) as well as the strength of habit of the behavior and the various facilitating conditions. Further, behavioral intention is explained by social factors as well as rational and affective beliefs about the behavior. In the model, social factors comprise of norms, roles and self-concept. And, affect construct comprises of both positive and negative emotional responses towards a decision and is distinct from rational-instrumental evaluations of consequences (perceived consequences construct).  

While TIB and TPB have many similarities, they are considered competing models as TIB incorporates the key role of habit and affective factors in explaining behavior. Triandis model has been used far less than Ajzen- Fishbein’s theory of planned behavior model. However, studies that used it showed that it had more explanatory power than TPB.


(Pee et al. 2008)

Diagram/schematic of theory

Theoretical Model for theory of interpersonal behavior Source: (Pee et al. 2008)

Originating author(s)

Triandis 1977

Seminal articles

Triandis, H. C. 1977. Interpersonal Behaviour, Brooks/Cole Pub. Co.

Originating area

Social psychology

Level of analysis


Links to WWW sites describing theory

Psykologimanusia blog -

Links from this theory to other theories

Workaround Motivation Model, Theory of planned behavior

IS articles that use the theory

Betts, T. K., Setterstrom, A. J., Pearson, J. M., and Totty, S. 2014. “Explaining Cyberloafing through a Theoretical Integration of Theory of Interpersonal Behaviour and Theory of Organizational Justice,” Journal of Organizational and End User Computing (JOEUC).

Fagan, M. H., Neill, S., and Wooldridge, B. R. 2004. “An Empirical Investigation into the Relationship between Computer Self-Efficacy, Anxiety, Experience, Support and Usage,” Journal of Computer Information Systems (44:2), Taylor & Francis, pp. 95–104.

Gagnon, M.-P., Godin, G., Gagné, C., Fortin, J.-P., Lamothe, L., Reinharz, D., and Cloutier, A. 2003. “An Adaptation of the Theory of Interpersonal Behaviour to the Study of Telemedicine Adoption by Physicians,” International Journal of Medical Informatics (71:2), pp. 103–115.

Koklic, M. K., and Vida, I. 2014. “An Examination of the Theory of Interpersonal Behaviour in the Digital Piracy Context,” in EBR Conference 2014, , November 13.

Moody, G. D., and Siponen, M. 2013. “Using the Theory of Interpersonal Behaviour to Explain Non-Work-Related Personal Use of the Internet at Work,” Information & Management (50:6), pp. 322–335.

Moody, G. D., Siponen, M., and Pahnila, S. 2018. “Toward a Unified Model of Information Security Policy Compliance,” MIS Quarterly (42:1), MIS Quarterly, pp. 285-A22.

Paré, G., and Elam, J. J. 1995. “Discretionary Use of Personal Computers by Knowledge Workers: Testing of a Social Psychology Theoretical Model,” Behaviour & Information Technology (14:4), United Kingdom: Taylor & Francis, pp. 215–228.

Pee, L. G., Woon, I. M. Y., and Kankanhalli, A. 2008. “Explaining Non-Work-Related Computing in the Workplace: A Comparison of Alternative Models,” Information & Management (45:2), pp. 120–130.

Turel, O. 2015. “Quitting the Use of a Habituated Hedonic Information System: A Theoretical Model and Empirical Examination of Facebook Users,” European Journal of Information Systems (24:4), Taylor & Francis, pp. 431–446.

Woon, Irene M.Y and Pee, Loo Geok, "Behavioural Factors Affecting Internet Abuse in the Workplace – An Empirical Investigation" (2004). SIGHCI 2004 Proceedings. 5.


Labeeba K, Doctoral Student at Indian Institute of Management, Kozhikode, India

Date last updated

19/11/2020 Please feel free to make modifications to this site. In order to do so, you must register.