"...we do not reveal the specific articles in our experiment, which outlet published each article, or any potentially identifiable individual-level aspects of the data we collected."
"...good communication kept [undesirable processes] to a minimum."
"As far as we could tell, they followed the same practices for articles in our experiment as those they ran ordinarily."
"To the best of our knowledge, no outlet received any reader communications about an article or practice that seemed unusual or out of place. "