Arguing that sufficient theory exists about the interplay between human information processing, computer systems, and the demands of various tasks to construct useful theories of human-computer interaction, this study presents a structural model of human-computer interaction and reports the results of various statistical analyses of this model.…

Describes a study designed to discover how community college students enrolled in algebra and English grammar courses used the available learner-control features of the TICCIT (Time-Shared Interactive Computer-Controlled Information Television) computer-assisted instruction system. Results indicate learner-control options were utilized but no…

Discusses hypotheses which examine, for a nonprogramed decision, variables of (1) individual decision makers, (2) information upon which choices are based, and (3) structural features within which decision is made. Circumstances under which decision-making group (Ohio's librarians) selected an innovative alternative (incorporation of OCLC) are…

Reports on survey studying the human-machine interface in Canadian university, public, and special libraries. Highlights include position category and educational background of 118 participants, participants' feelings toward automation, physical effects of automation, diffusion in decision making, interpersonal communication, future trends,…

This paper examines possible explanations for the fact that evaluation results are rarely used. Most explanatory factors for use of results in decision making mentioned in the literature have been clustered in three categories of variables. They concern: (1) the making of decisions about the practical problem; (2) the way in which evaluation is…

This experiment used simulated production environment to examine empirically two of five management information system design assumptions Ackoff considered erroneous: managers perform better with detailed rather than summarized reports; and managers who are satisfied with needed information perform better than those who are dissatisfied and want…

Discussion of teamwork and group decision making focuses on study of undergraduates conducted to identify the variables that affect team cohesion in a business game. A literature review on small groups and business games is presented, hypotheses tested are described, discriminant analyses are explained, and suggestions for further research are…

Explains a theoretical framework for interpreting educational policy-making and, on the basis of that framework, identifies educational policy makers and policy changes in Hungary in the 1960s and 1970s. Tests the theory by examining controversies about secondary education and the structure of the educational system. (JHZ)

The sequential probability ratio test (SPRT), developed by Abraham Wald, is one statistical model available for making mastery decisions during computer-based criterion referenced tests. The predictive validity of the SPRT was empirically investigated with two different and relatively large item pools with heterogeneous item parameters. Graduate…