Comparing Alternative Computer-based Methods for Presenting Job Task Instructions

Job performance aiding, job performance aids, computer-based communications, audiovisual presentation methods, proceduralized -instruction ferhniques 19 ABSTRACT (Continue on reverse if necessary and identify by block number) This study compared the effects of previous task training/experience and alternative methods for presenting procedural instructions on job task performance. Six computer-based methods were examined by having oscilloscope operators perform four equipment-related tasks. The presentation methods were text-only, audio-only, text-audio, text-graphics, audiographics, and text-audio-graphics. Results showed that regardless of the subjects' prior training and experience in operating oscilloscopes, the most efficient and effective task performances were obtained through a combination of audio and graphic presentations, an effect which can be further enhanced by the addition of redundant textual instructions. The practical applications and theoretical implications of these findings are discussed.