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Psychometrika

, Volume 17, Issue 1, pp 45–68 | Cite as

Factor analysis of the army air forces sheppard field battery of experimental aptitude tests

  • J. P. Guilford
  • Benjamin Fruchter
  • Wayne S. Zimmerman
Article

Abstract

A factor analysis was made of 39 experimental printed aptitude tests and seven reference tests selected from the Army Air Forces Aircrew Classification Battery. Thirteen factors were extracted and two independent orthogonal rotational solutions were completed. Twelve factors were interpreted. Of these, seven were clearly identifiable with previously known factors: numerical, perceptual-speed, spatial-relations, visualization, visual-memory, paired-associates-memory, and length-estimation factors. A planning factor was not as clearly identifiable. A reasoning factor was probably a composite of two or more factors that failed to separate. A new factor possibly has to do with orientation with respect to the points of the compass. Two factors were doublets, each apparently specific to one kind of test. Better conceptions were gained of the spatial-relations and visualization factors and of the kinds of tests that measure them best. Efforts to improve measures of unique factors were not uniformly successful. The attempt to duplicate a psychomotor test rather directly by analogy in printed form failed almost completely.

Keywords

Public Policy Statistical Theory Unique Factor Reference Test Planning Factor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Psychometric Society 1952

Authors and Affiliations

  • J. P. Guilford
    • 1
  • Benjamin Fruchter
    • 2
  • Wayne S. Zimmerman
    • 3
  1. 1.University of Southern CaliforniaUSA
  2. 2.University of TexasUSA
  3. 3.Brandeis UniversityUSA

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