Factor rotation is a crucial component in EFA. It is a technique used to simplify the factor structure by reorganizing the factors to enhance the interpretability of identified factors. There are two types of factor rotation: orthogonal and oblique rotation.
In orthogonal rotation, factors are considered to be uncorrelated, which means that there is no correlation between any two factors. Varimax and equimax are two examples of orthogonal rotation. Among these, the varimax rotation is commonly used by researchers.