If you can answer the following points, I can extend some support:
A. What is your hypothesis?
(The facts, figures, assumptions, premises you want to validate or check through the study)
B. Which communication channels or modes do you want to include?
C. Who shall be your respondents for this study?
I understand you want to study the "Effectiveness of Communication In ...................(your organization)" and not the communication gap. Do not initiate the study with the conclusion in mind.
Regards,
Shailesh Parikh
Vadodara, Gujarat
[Phone Number Removed For Privacy Reasons]