This paper describes a study in which the intelligibility of supplier information was investigated from a consumer viewpoint. A sample of 123 randomly selected subjects were given eight automobile brochures and asked to rate the manufacturer information on four automobile characteristics which are highly important to consumers.
In order to measure intelligibility one subjective and one objective indicator were chosen. The subjective rating scores indicate considerable differences among the characteristics. As the ratings of a list of intelligibility items demonstrate, a negative scoring was especially due to a lack of explanation of technical terms and furthermore to the fact that in the subjects' view, much of what was said in the brochures could have been left out. The hit rate, which was taken as an objective indicator of intelligibility, shows that on average for all subjects and topics under consideration nearly half of the information actually given in the brochures was not made use of as it could not be identified as relevant.
This unduly high amount of wasted information can be reduced only when the suppliers of information become aware of -and take into account -the readers' dissatisfaction with unnecessary information.