Sample size for logit model?

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David Eugene Booth

Looks ok to me. I would have said 60 or more. The attached file may be useful for you. Best wishes, David Booth

Martin Schmettow

Yes, dichotomous data means logit model (aka logistic regression). However, I have my doubts about your sample size. Dichotomous data does have only 1 bit of information per observation. You'll probably face strong uncertainty in your estimates.