First of all, there are only two attributes, brand and price.
After I finished fieldwork, I opened raw data file.
I checked every raw data is fine, and I put it to analysis,
but ACBC cannot read brand attribute well.
Respondent 41 - A level was encountered in the respondent which does not exist. The attributes may have been changed after data was collected.
But nothing has been changed...
What can I do?