Importing from an SPSS file may also require a dictionary file.
If you want to use any of the MML procedures for test data, you will need
to specify the tests and the item parameters (see Importing
AM text import file for more details). When importing
a SPSS .sav file the dictionary need only contains information that is
not contained in the SPSS file. Specifically, the dictionary contains information
about the tests, such as item parameters and the arrangement of items into
subtests. AM does not process character variables, and skips over
any character variables in the SPSS file. After the initial
import, select File|Update Metadata from the File menu to read in the dictionary.