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Research was undertaken to develop an experimental computer-based training system and to conduct a number of experiments in dynamic skill training using the system. (Training for such tasks is distinguished from the teaching of fact systems, the training domain most heavily studied in CAI applications.) Based on the hypothesis that the attentional demands of dynamic skill simulation training require that special instructional techniques be used for training to be effective, several dynamic skill tasks were studied, and a laboratory analog to the Air Intercept Controller task was developed for experimental use. One set of experiments tested different approaches to giving the student information about performance during training, while a second set of experiments focused on the problems and potentials of the use of voice input and voice output technologies in computer-based training. The results showed that intrusive instruction is less effective for such simulation training than is non-intrusive instruction, and that current low-cost technologies for voice input/output are aproaching the acceptability threshold for this type of application. Eight references are listed. (Author/LMM)

1Boy Crusoe

By Allan Eric

Also published as" A Yankee Crusoe" . A 15 year old hard working and studious farm boy finds the lure of adventure on the seas as a merchant seaman more than he can resist. This is his story. " I was born in a little town in the State of Maine, near the close of the Civil War. My boyhood life did not differ materially from that of the average farmer's son in the remote country districts of New England--except, perhaps, that I read more and thought more. Hard work on the rugged soil, two terms each year in the little yellow country schoolhouse, a day's fishing now and then filled the early years of my life full to over-flowing. " What he gets is enough excitement and adventure to overflow his wildest dreams. How he experiences disaster and uses his wits and knowledge to overcome every problem makes for a great read. - Summary by Phil Chenevert