However, the six factors were originally selected by the Kaiser - Guttman rule (
eigenvalue > 1), which is not recommended for determining the number of factors [24] for the following reasons; First, this method is recommended for the principal component analysis (PCA) case and not for the
EFA.
A principal component analysis (PCA) revealed two components with an
eigenvalue above the cut - off value of one (4.47 and 2.65), suggesting a two - factor structure for the
EFA.