Stroud (1953) obtains the following correlation matrix for p = 14 body measurements of soldier termites (Table 6.17).
(a) Carry out a maximum likelihood factor analysis using the correlation matrix of Table 6.17. How many common factors are retained using (i) likelihood ratio chi-squared test, (ii) Akaike's criterion, and (iii) Schwartz's criterion. What do you conclude?
![](https://test.transtutors.com/qimg/5729decd-618b-4ca4-b211-0964e50a2272.png)
(b) Rotate thc common factor loadings using (i) orthogonal rotation and (ii) oblique rotation. Do they aid analysis of the data? (Sce also Hopkins, 1966 and Sprcnt, 1972)