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Biases in retrospective self-reports of time use: an empirical study of computer users

Article Abstract:

The computer usage self-assessments of 401 information systems managers and professionals are compared with computer-monitored interactive use and connect time. A 32% discrepancy is observed in comparing self-assessed use with logged interactive use. Averages are similar when-self assessments are compared with total connect time. Relatively minimal systems users tend to overestimate their use, while heavy users tend to underestimate their use. The results point to added caution in operationalizing user acceptance through self-reports of time use. Computer-monitored data should be regarded as a component of a multi-method approach rather than as a complete substitute for self-reported measures.

Analysis, Practice, Time management, User groups

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A discrepancy model of end-user computing involvement

Article Abstract:

A model based on results generated from 618 respondents from 44 firms is developed which focuses on individual differences between computer end users. The model hypothesizes that a contingency relationship exists between desired involvement, perceived involvement, and end-user satisfaction based on the discrepancy concept of participation. The model takes into account past research that has identified that end user computing has been characterized by significant differences between individuals in motivation and skill. Research findings suggest support for the contingency model.

Management information systems

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User acceptance of computer technology: a comparison of two theoretical models

Article Abstract:

The ability to predict workers' acceptance of computers from a measure of their intentions is examined. The ability to explain workers' computer use intentions in terms of perceived usefulness, subjective norms, perceived ease of use, and worker attitudes is also examined. Data was collected from a longitudinal study of 107 users. Results indicate that: workers' intentions were influenced by perceived usefulness; workers' intentions were slightly influenced by perceived ease of use; and the effects of beliefs on intentions were only partially mediated by attitudes.

Management science, Information technology

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