Many people in the MIS field have accepted the idea that attitudes aff
ect the frequency and type of computer use but,research has provided i
nconsistent results. This paper, therefore, explores the conditions un
der which attitudes can predict computer use, investigating both worke
rs' volitional control and their knowledge of the technology. Analyses
are based on responses of 168 white-collar employees in 77 computer-u
sing work groups. Attitudes were found to predict the number of hours
of computer use for all workers, but only predicted the extent of job
computerization for those who had real freedom of choice and knowledge
about their computer system. (C) 1998 Elsevier Science B.V. All right
s reserved.