JUDGEMENTS OF SIMULATED TARGET AXIS ANGLES BY MEANS OF A PRESCRIBED CATEGORY SYSTEM
BUREAU OF NAVAL PERSONNEL WASHINGTON DC
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During the summer of 1961, two groups of students at the Fleet Anti-Submarine Warfare School, San Diego, were tested on their ability to make target axis angle estimates from simulated materials utilizing the angular categories in the Naval Electronics Laboratory classification system. One group received a 30 minute familiarization training period while the other was simply introduced to the task prior to testing. It is concluded that neither training nor the scope quadrant in which the stimulus appears significantly affect accuracy while the angular category does. The dominant error tendency is toward overestimation of angular size, except at the most acute angular category. Accuracy of classification within the Navy Electronics Laboratory, San Diego, system ranges from 50.2 to 89.2 depending on category, with an over-all accuracy of 68.0. The majority of errors 92 are of only one category in extent.