#facepalm
Thanks for your help/patience.
The /beta coefficients line up now.
Followup: Any idea why the std.error, z-value, and p-values don’t match?
as.data.frame(Titanic) %>%
mutate(Age = relevel(x = Age, ref = "Adult"),
Sex = relevel(x = Sex, ref = "Female")) %>%
glmer(formula = Survived ~ 1 + Age * Sex + (1|Class), family = binomial, weights = Freq, nAGQ = 3, data = .) %>%
summary()