Overview of Advanced Systems Division Criterion Research (Maintenance).
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The criterion research program of the Advanced Systems Division AS, described in this paper, has included important aspects of the criterion problem as it applies to the measurement of ability to perform maintenance tasks in training and on the job. The objective of AS in the solution of this problem is to get as close to the real job as possible. When on-line tasks occur often enough, their structured observation may be appropriate. But when such observations are not appropriate or when tasks occur infrequently, we propose to have the tasks performed off-line in a job-like environment. The Advanced Systems Division approach to the development of such measures was started with an analysis of the structure of the manhardware interface for maintenance. Based on the results of this analysis, a model test batteries of graphic and video symbolic substitute tests were also developed. Several of the graphic symbolics have indicated respectable empirical validities but require more refinement and try out. The attempts to develop video symbolics were unsuccessful.
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