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Theory Name Unified Theory of Acceptance and Use of Technology
Acronym UTAUT
Alternate name(s) N/A
Main dependent construct(s)/factor(s) Behavioral Intention, Usage Behavior
Main independent construct(s)/factor(s) Performance Expectancy, Effort Expectancy, Social Influence, Facilitating Conditions, Gender, Age, Experience, Voluntariness of Use
Concise description of theory The UTAUT aims to explain user intentions to use an IS and subsequent usage behavior. The theory holds that four key constructs (performance expectancy, effort expectancy, social influence, and facilitating conditions) are direct determinants of usage intention and behaviour (Venkatesh et. al., 2003). Gender, age, experience, and voluntariness of use are posited to mediate the impact of the four key constructs on usage intention and behavior (Venkatesh et. al., 2003). The theory was developed through a review and consolidation of the constructs of eight models that earlier research had employed to explain IS usage behaviour (theory of reasoned action, technology acceptance model, motivational model, theory of planned behavior, a combined theory of planned behavior/technology acceptance model, model of PC utilization, innovation diffusion theory, and social cognitive theory). Subsequent validation of UTAUT in a longitudinal study found it to account for 70% of the variance in usage intention (Venkatesh et. al., 2003).
Diagram/schematic of theory

Source: Venkatesh et al. (2003)

Originating author(s) Venkatesh et al. (2003)
Seminal articles

Venkatesh,Viswanath;Morris,Michael G.;Davis,Gordon B.;Davis,Fred D., “User acceptance of information technology: Toward a unified view”, MIS Quarterly, 2003, 27, 3, 425-478.

Originating area Information Systems, Technology Adoption
Level of analysis Individual
Links to WWW sites describing theory http://www.cis.gsu.edu/~ghubona/info790/VenkEtAlMIQ03.pdf#search='UTAUT', The complete Venkatesh et. al. (2003) paper 

http://sais.aisnet.org/sais2004/Anderson%20&%20Schwager.pdf#search='UTAUT', A paper presented by Anderson and Schwager at the 7th Annual Conference of the Southern Association for Information Systems on the application of UTAUT to the adoption of wireless LAN technology by SME's

Numerous links exist to early, preliminary, or unpublished works that use UTAUT including:

http://cct.georgetown.edu/thesis/ChaenyEmanavin.pdf#search='UTAUT'

http://medir.ohsu.edu/~gormanp/IJMI_special_issue/38_Schaper.doc

http://www.student.oulu.fi/~anttia/pps/paperit/ristola_kesti.doc

http://bai2004.atisr.org/BAI2005CD/Paper/2005bai86.doc

http://medir.ohsu.edu/~gormanp/ITHC/final/38/38_PDF_of_Manuscript.pdf#search='UTAUT'

Links from this theory to other theories The Theory of Reasoned Action (TRA)

The Theory of Planned Behavior (TPB)

The Technology Acceptance Model (TAM)

Diffusion of Innovations

IS articles that use the theory Garfield,Monica J., “Acceptance of Ubiquitous Computing", Information Systems Management, 2005, 22, 4, 24-31.
Contributor(s) Brent Furneaux
Date last updated September 30, 2005

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