I work in quantitative research. A cell with 13 or 25 respondents in it ought to be used with caution, but is not necessarily underpowered. My "rule of thumb" i

I work in quantitative research. A cell with 13 or 25 respondents in it ought to be used with caution, but is not necessarily underpowered. My "rule of thumb" is that, given a well-represented and properly weighted sample, having 30+ in a given cell when crosstabbing like this is healthy, and 10+ per cell is the bare minimum I will accept - with caution.