Post-Acceptance Intentions and Behaviors: An Empirical Investigation of Information Technology Use and Innovation

Post-Acceptance Intentions and Behaviors: An Empirical Investigation of Information Technology Use and Innovation

Pamela E. Carter (North Carolina A&T State University, USA), Jason Bennett Thatcher (Clemson University, USA), Katherine M. Chudoba (Utah State University, USA) and Kent Marett (Mississippi State University, USA)
Copyright: © 2012 |Pages: 20
DOI: 10.4018/joeuc.2012010101
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Due to its extensive use for the study of information technology adoption and use, the Technology Acceptance Model (TAM) serves as an ideal base model for the study of post-acceptance IT diffusion outcomes. The research presented in this paper incrementally builds on TAM-based research to gain meaningful insights into the potential differences individuals’ exhibit in three types of diffusion outcomes in a post-acceptance context. The authors model and test the effects of perceived usefulness and perceived ease of use on intentions to use, intentions to explore, and trying to innovate – IT diffusion outcomes proposed as vital in a post-acceptance context. In addition to TAM predictive variables, the authors investigate how autonomy, a personal control factor, and subjective norms, a social factor, influence individuals’ intentions toward and behaviors associated with technology use. The findings suggest cognitive intention outcomes are more likely to be influenced by technology-related factors, while behavioral outcomes are more likely to be influenced by social and personal control factors in post-acceptance contexts. Implications of the study for practice and future research are also discussed.
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It Context Of Post-Acceptance And Models

Once individuals adopt and have initial use experiences with an IT, acceptance has occurred (Kwon & Zmud, 1986). Recent literature has begun to focus on post-acceptance technology outcomes, and initial findings suggest important differences between the pre-acceptance, initial acceptance, and post-acceptance stages of IT diffusion. However, post-acceptance stages of IT diffusion remain understudied and post-acceptance technology outcomes are not fully understood (Somers & Nelson, 2004). There are different types of post-acceptance outcomes including, but not limited to, intentions to (continue) use, continued use, incorporation, exploration, routinization, and infusion. To focus our research domain and build on prior empirical research, we concentrate on three specific post-acceptance outcomes: intentions to use IT (IU), intentions to explore IT (IE), and trying to innovate with IT (TRY) Table 1 lists the constructs examined in this study and provides their definitions.

Table 1.
Construct definitions
Intention to Use IT (IU)A user’s intention to continue use of a particular IT (Bhattacherjee, 2001)A user continuing to use an application in familiar ways to support day to day work such as entering data on a spreadsheet or using a word procession application.
Intention to Explore IT (IE)Reflects a user’s willingness and purpose to explore an accepted technology and find potential new use (adapted from Nambisan, Agarwal, & Tanniru, 2000)A user planning to explore new features of an existing application in order to identify new ways to manipulate data such as learning new formulas in a spreadsheet application or using the mailmerge function in a word processing application.
Trying to Innovate with IT (TRY)An individual’s behavioral attempts to find new or novel uses of information technologies (Ahuja & Thatcher, 2005)A user having attempted to use the new formula or mailmerge function in an innovative way that supports completing necessary work.
Perceived Usefulness of IT (PU)The degree to which a person believes that using a particular system would enhance his or her job performance (Davis et al., 1989)A user finding an spreadsheet application helps them complete a task requiring manipulating numbers or figures.
Perceived Ease of Use of IT (PEOU)Perceived ease of use refers to the belief that using a technology will be relatively free of cognitive effort (Davis, 1989)A user finding it relatively simple to use a spreadsheet.
Subjective Norms towards IT (SN)Individuals’ perceptions that important referent others think that they should or should not perform an IT behavior and their motivation to comply with these referents (adapted from Fishbein & Azjen, 1975)A user believes that important peers strongly believe that they should use a spreadsheet.
AutonomyThe degree to which the job provides substantial freedom, independence and discretion in scheduling the work and in determining the procedures to be used in carrying it out (Hackman & Oldham, 1975)A user having freedom to decide when and how they use a spreadsheet to support work.
Personal Innovativeness with IT (PIIT)The willingness of an individual to try out any new information technology (Agarwal & Prasad, 1998)A user wanting to try out the latest version of a spreadsheet application.

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