GATE (Graduate Aptitude Test in Engineering) Psychology Research Methods and Statistics-Factor Analysis Study Material (Page 4 of 5)

Subscribe now to access pointwise, categorized & easy to understand notes on 369 key topics of GATE (Graduate Aptitude Test in Engineering) Psychology covering entire 2021 syllabus. With online notes get latest & updated content on the device of your choice. View complete topic-wise distribution of study material. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Features or View Sample.

Rs. 550.00 -OR-

How to register? Already Subscribed?

Factor Analysis: Principal Component Analysis (PCA)


Principal Component Analysis (PCA)

Mechanics of PCA

PCA is a procedure for identifying a smaller number of uncorrelated variables, called “principal components,” from a large set of data to explain the maximum amount of variance with the fewest number of principal components.

Principal components can be defined as a linear combination of optimally-weighted observed variables such that they explain maximum variance in the variables. “Linear combination” means that scores on a component are created by addi…

… (526 more words) …

Subscribe & login to view complete study material.

Factor Analysis: Process of FA


Process of FA

The most widely used method in factor analysis is the Principal Factor Analysis (PFA) method. Both PCA and PFA are based on slightly different versions of the R correlation matrix (which includes the entire set of correlations among measured X variables) . In contrast with PCA, in PFA, we replace the 1՚s in the diagonal of the correlatio…

… (730 more words) …

Subscribe & login to view complete study material.