
Accession Number : AD0472122
Title : ORTHOGONAL INTERBATTERY FACTOR ANALYSIS.
Descriptive Note : Technical rept.,
Corporate Author : EDUCATIONAL TESTING SERVICE PRINCETON NJ
Personal Author(s) : Kristof, Walter
Report Date : SEP 1965
Pagination or Media Count : 45
Abstract : It is the purpose of this paper to present a method of analysis for obtaining (1) interbattery factors and (2) battery specific factors for two sets of tests when the complete correlation matrix including communalities is given. In particular, the procedure amounts to constructing an orthogonal transformation such that its application to an orthogonal factor solution of the combined sets of tests results in a factor matrix of a certain desired form. The factors isolated are orthogonal but may be subjected to any suitable final rotation, provided the above classification of factors into (1) and (2) is preserved. The general coordinatefree solution of the problem is obtained with the help of methods pertaining to the theory of linear spaces. The actual numerical analysis determined by the coordinatefree solution turns out to be a generalization of the formalism of canonical correlation analysis for two sets of variables. A numerical example is provided. (Author)
Descriptors : (*FACTOR ANALYSIS, STATISTICAL TESTS), THEOREMS, NUMERICAL ANALYSIS, MATRICES(MATHEMATICS), TRANSFORMATIONS(MATHEMATICS), PSYCHOLOGICAL TESTS.
Distribution Statement : APPROVED FOR PUBLIC RELEASE