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GENERAL INTRODUCTION _
THE INVENTION AND REFINEMENT or APTITUDE
PROBLEMS IN DETERMINING AN ADEQUATE CRITERION
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administrative aircrew classiﬁcation aircrew specialties aircrew training analysis of variance apparatus tests assignment Aviation Psychology Program basis behavior biserial bombing cadet classiﬁcation testing combat complete computed correlation coefficient criteria criterion measures cumulative frequencies deﬁned deﬁnition determine elimination error estimate experimental F-Ratio factors ﬁeld ﬁnal ﬁrst ﬂight ﬂuctuations ﬂying training formula functions gunners indicated individual inﬂuence insofar intercorrelations involved job analysis job specialties limited missions motion picture tests multiple correlation observer obtained operations performance phi coefficient pilot training possible practical prediction preﬂight printed tests problem procedures proﬁciency qualiﬁed ratings records reliability research tests retest sample selection signiﬁcant single speciﬁc evaluations standard standard deviation Standard Score stanine statistical task test battery test development test form test ideas test items test scores test validity tical tion traits type of test type of training ultimate criterion validity data values variable variation