General Studies · Factor Analysis

A researcher applied factor analysis on 100 highly correlated variables extracting 5 factors and on further analysis obtained 2 second-order factors. The values of h2 were 0.78, 0.42, 0.85, 0.60, and 0.52 respectively, and the eigenvalues were 3.56 and 2.75. He used a scree test to determine the number of factors to be retained, at which point the eigenvalue was more than 1.00. Which is the likely type of rotation used by the researcher to obtain second-order factors?