How to realize the assignment of virtual variables in SPSS
For the problem of dummy variables, please refer to the description in the help manual of SPSSAU: Description of dummy variables -SPSSAU.
You can also directly use the variable generation function of online SPSS〖sp ssau〗] to set dummy variables with one click. Then, when analyzing, put one less item as a reference item, and put the others into the independent variable box.