New longitudinal project

Create longitudinal study with 4 waves (each 2 weeks). First and last wave with same questions, 2nd and 3rd wave with reduced questions than the other two.
I need to use inclusion criteria that will create 4 different studies.
Create questionnaire in Qualtrics, approximately 140 questions (likert type many of them)
Can we briefly talk to discus details and questions?

Please drop me an email if it works for you: