Exercise

Creating CFA syntax from theory

While it's easy to create CFA syntax from EFA results, it's a bit trickier to get the syntax set up when you're working directly from a theory. One way to create syntax that can be used with the sem() function is to create a series of equations showing which item-factor loadings should be estimated. When creating this matrix, the factor names come first, and a colon separates them from a comma-separated list of items. Once you've set up the initial equations, you can use the cfa() function to have the sem package add variances and covariances to the model.

Instructions 1/2

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Write a set of equations showing the five items that load onto each of the five factors: AGE, CON, EXT, NEU, OPE.