What to provide your methodological consultant
To work with a methodological consultant, provide a table similar to that what you will need for your NIH/Forms F pages. Below is a google sheet template you can open, save to your own google drive or download as Excel, and fill out. Also provide information about randomization and the allocation ratio, anticipated missing data, and other important design considerations.
To read more about a complete sample size and power justification
To read more about a complete sample size and power justification
Please see this web page. This web page also has a checklist you, as the principal investigator, can use to make sure you have the information you need to convince reviewers that your design is adequate to test your hypotheses.