My questionnaire looks like the following:
I want the order of Qc, Qd, and Qe fixed, which means respondent should see Qc first, then Qd, then Qe. Then I need to randomize the order of Qa, Qb, and (Qc, Qd, and Qe).
For example, respondents should see the following order:
Qa, Qc, Qd, Qe, Qb
Qc, Qd, Qe, Qb, Qa
Qb, Qa, Qc, Qd, Qe
I guess I need to use constructed lists. Any one could help me with that? Many many thanks!