Abstract
Since the Cooper Scale is likely to be the most satisfactory instrument for evaluating handling qualities in the near future, it is important that appropriate statistical techniques be used wherever possible to analyze obtained rating data. At the present time, many handling-qualities researchers do not capitalize on available statistical procedures. To encourage use of such procedures, it is shown in the context of a sample of actual handling-qualities data that the following useful determinations can be made without changing the usual experimental design: (1) evaluation of the statistical significance of rating differences due to various factors; (2) establishment of the reliability of the obtained ratings; and (3) modification of Newell's Pilot Sensitivity Function to conform to conventional psychophysical functions.
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