I would like to select all my cases that have been conducted in a certain country, use a certain scale and have been conducted in 2 different questionnaire types (out of 5 questionnaire types). I've tried this:
Country=1 & Scale =1 & Questionnaire = 1 OR 5
For some reason, this does not work
I've tried, it works for:
Country=1 & Scale =1 & Questionnaire = 1
but as soon as I include the second questionnaire type (Q5) it does not work any more
Any idea why?
