Application of the Multiple Discriminant Function to Data from the Airman Classification Battery

Item

Title
Application of the Multiple Discriminant Function to Data from the Airman Classification Battery
Date
1952
Index Abstract
Coming Soon
Photo Quality
Undetermined
Report Number
HRRC RB 52-37
Creator
Tiedman, David V.
Bryan, Joseph G.
Rulon, Phillip J.
Corporate Author
Human Resources Research Center
Extent
43
Identifier
AD0006211
AD Number
6211
Distribution Classification
1
DTIC Record Exists
Yes
Distribution Change Authority Correspondence
PER AFHRL LTR
Abstract
A new approach to the selection and classification of AF trainees is described. The new procedure, which is directed primarily toward the establishment of differences in abilities required for various jobs, utilizes the multiple discriminant function. The study involved 6105 airmen who had satisfactorily completed training in 1 of 8 specialties and had also completed all the tests of the Airmen Classification Battery AC-1. Multiple discriminant analysis of this data revealed that essentially all the information concerning the separation of the 8-specialty centroids in the 17-dimensional Airman Classification Battery space is described by 2 linear combinations of the 17 variates. These 2 functions were believed to represent mechanical ability and intellectual ability. A study of the distributions of 2 discriminant scores, computed for each airman, showed that the assumption of bivariate normality was tenable for the discriminant score distributions with but one exception. Centour scores were computed for each group under the assumption of a normal bivariate discriminant score distribution. These scores would be helpful for career guidance of new airmen except for the large overlap of the 8 groups in the Airman Classification Battery space.
Report Availability
Full text available by request
Date Issued
1952-02
Provenance
IIT
Type
report
Format
43 pages ; 28 cm.