Requirements for a Conjoint Analysis

The Conjoint procedure requires two files—a data file and a plan file—and the specification of how data were recorded (for example, each data point is a preference score from 1 to 100). The plan file consists of the set of product profiles to be rated by the subjects and should be generated using the Generate Orthogonal Design procedure. The data file contains the preference scores or rankings of those profiles collected from the subjects. The plan and data files are specified with the PLAN and DATA subcommands, respectively. The method of data recording is specified with the SEQUENCE, RANK, or SCORE subcommands. The following command syntax shows a minimal specification:

CONJOINT PLAN='CPLAN.SAV' /DATA='RUGRANKS.SAV'
 /SEQUENCE=PREF1 TO PREF22.