Describes the development and preliminary validation of the Computer Attitudes Scale (CAS), which is designed to provide researchers and educators with a way of assessing some basic student attitudes about computer usage. (MBR)

Discusses issues relating to the reliability, validity, utility, and information value of unobtrusive testing of library reference services; provides suggestions for practical applications of these criteria; applies study findings to library decision making and planning; and identifies topics for further methodological refinement. (Author/CLB)