I think IEP Technique is there for teacher and parents collaboration measurement but there is not any particular tool you have to design your own tool of Assessment.

Thank you so much for your answers and your resources. They will help me structure my research.

Open this link :http://www.education.uci.edu/person/domina_t/docs/TD-SOE.pdf.

Thank you very much.

Hi,

Hope the attached articles will enable you to have an idea on various ways to assess collaboration between parents and teachers.

Best of luck!

Article Validity and Utility of the Parent-Teacher Relationship Scale-II

Article The Electronic Booklet on Teaching-Learning Process: Teacher...