Reliability of Raters

List three different scenarios where raters or observers could be used for data collection in a res​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​earch study. Discuss three different statistical procedures used to evaluate interrater reliability in research​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​.