I use an hourly rate for two reasons: first, it means that you do not overpay in case things go more quickly than anticipated, and secondly it means that I am not underpaid in case things take a little longer than what was originally planned.

Once I have everything I need, I'll prepare a quote based on my hourly rate and send it to you for your consideration.

I would also be happy to supply you with an itemized list of how I have spent my time as long as this is requested in advance.

If you are uncertain about the prospect of hiring a statistical consultant or what the cost might be, please feel free to contact me first. I'd be happy to discuss your study or project in more detail either over e-mail or over the phone at no cost.