Use the SDQ data to subsample two random samples of 500 using the seed values of 37 and 62. (For assistance, see example syntax presented in the chapter.) Repeat the EFA and replication as performed in the chapter to see whether you get similar results.

Return to the engineering data from Chapter 2. Test whether those EFA results replicate by randomly splitting the file into two samples. With an original N = 372, the samples will be smaller, and thus more volatile. Will the strong factor structure previously observed be maintained in two smaller samples?

Using the identification with academics data downloaded in Chapter 2, split the file into two randomly chosen samples. Conduct an EFA based on best practice for the data and compare the results. Does your solution replicate?