An Experimental Analysis of Decision Channeling by Restrictive Information Display

This study focuses on the effect of restrictive information display on decision performance. Specifically the study examines whether two-channeled and one non-channeled computerized information display systems result in significant differences in decision accuracy. The two-channeled information display systems are designed to encourage two general information processing patterns commonly observed in the experimental literature examining multi-alternative, multi-attribute choice decisions: information processing by alternative and information processing by attribute. An information display program was developed which used restrictive information display to operationalize the channeled versus non-channeled manipulation. Channeling was implemented either by displaying information only by alternative or by displaying information only by attribute. The task was an operations scheduling problem that subjects completed under three levels of time pressure. The results indicate statistically significant effects on decision accuracy for both the type of information display and time pressure manipulations. The highest decision accuracy was observed when information was displayed by alternative and when subjects were under highest levels of time pressure.