
06140166
j
2013b.00788
Deakin, Michael
History of mathematics: the vectors of mind.
Parabola 48, No. 2, 1426 (2012).
2012
AMT Publishing, Australian Mathematics Trust, University of Canberra, Canberra; School of Mathematics \& Statistics, University of New South Wales, Sydney
EN
K80
A30
H60
cognitive psychology
intelligence factors
factor analysis
principal component analysis
vectors
descriptive statistics
means
variance
standard deviation
correlation coefficient
correlation matrices
matrix of covariances
characteristic polynomials
eigenvectors
largest eigenvalue
objective evidence
subjective evidence
fundamental factors
objective factors
subjective factors
From the editorial: The article continues the author\rq s History of mathematics series. In this article he considers factor analysis applied to test scores. The underlying idea in factor analysis is to determine if a number of observables $y_1,y_2,\dots ,y_n$ can be linearly related to a smaller number of unobservable factors $f_l,f_2,\dots ,f_k$. For example the observables might be scores from many different students in $n$ different tests.