Which confidence interval model is this?

#1
Hi I've been supplied with this code to calculate confidence limits for a population proportion for a specified level of confidence based on a logistic regression algorithm.

But I can't work out what method this is based on:
  1. Asymptotic (Wald) method based on a normal approximation,
  2. Binomial (Clopper-Pearson) 'exact' method based on the beta distribution,
  3. 'Wilson' Score interval,
  4. 'Agresti-Coull' (adjusted Wald) interval and
  5. 'Jeffreys' interval.



Thanks in advance.
 
Last edited:

hlsmith

Not a robit
#2
I am no expert, but they seem like Wald to me. In the output, just using the estimate and SE measure seems basic and what usually gets used with Wald.