This is a list containing the Loadings
(original factor pattern) and Phi
matrix (factor correlation matrix) from Thurstone's 20 Box problem (Thurstone, 1940, p. 227).
The original 20-variable Box problem contains measurements on the following score
functions of box length (x), width (y), and height (z).
Box20 variables:
x^2
y^2
z^2
xy
xz
yz
sqrt(x^2 + y^2)
sqrt(x^2 + z^2)
sqrt(y^2 + z^2)
2x + 2y
2x + 2z
2y + 2z
log(x)
log(y)
log(z)
xyz
sqrt(x^2 + y^2 + z^2)
exp(x)
exp(y)
exp(z)