Published online by Cambridge University Press: 01 January 2025
This paper shows the formulation of nine methods of estimating the unknown communalities. Each of these methods has been used on experimental data and the results tabulated for comparison. The results show that the most accurate approximations are obtained from the Centroid No . 1 and the Graphical methods.
The author wishes to express his appreciation to Professor L. L. Thurstone for his advice and for providing the facilities of the Psychometric Laboratory for this investigation.