As a part of my master thesis, I'm conducting an observational study of journalists' background and the effect of this on the approach to a certain case study. I have a fixed number of observations/articles, 781 to be precise. I know that some of them are likely written by the same journalists, but I don't know exactly how many journalists I'll find in the sample. I will conduct a logistical regression.
Can anybody help me with estimating if this is enough articles (power sample size)? I have tried the
powerlog in Stata, but I can't account for the cluster-structure arising from having multiple articles from the same journalists.
Please do let me know if I should improve the questioning (as I'm new on this forum).
Best regards, Simon