I had the privilege of sharing my thoughts on how nonprofits can rethink donor retention measurements in the APRA DC Winter 2016 Newsletter. I encourage you to head on over and read it. Starting on page 4 you get some thoughts on data analysis, baseball and formulas. What is not to like?
A small sample (size):
To bring it back to donor retention, the problem I have with it is the same problem that statisticians have with batting average: there is a lack of value placed on the desired result, which in fundraising is the amount of money raised and in baseball is the amount of bases. What we have begun to explore is weighting donor retention in a way that also gives value to the donation.