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Exercise

EFA: How many factors?

A survey can load to any number of factors, so long as there is more than one item loaded to each factor. It appears from the scree plot that brand_rep_9 reflects three latent factors, but let's check with one more and one fewer factor just to be safe. The three-factor model has been stored as brand_rep_9_EFA_3, and psych has been loaded to your environment along with the brand_rep_9 dataset.

Instructions
100 XP
  • Print a summary() of brand_rep_9_EFA_3.
  • Build and print the loadings for a two-factor EFA of brand_rep_9. Assign this output to the object brand_rep_9_EFA_2.
  • Do the same for a four-factor model. Assign the output to brand_rep_9_EFA_4.