Hawthorne effect reporting in orthodontic randomized controlled trials: truth or myth? Blessing or curse?

摘要

Objective: To investigate in 10 orthodontic journals how many randomized controlled trials (RCTs) considered the Hawthorne effect, and if considered, to determine whether it was related to the patients or the therapists involved in the trial and, finally, to discuss the Hawthorne effect in an educational way.