The researchers kept their identities secret because, if they had revealed that their purpouse was to conduct an experiment on the behaviours of the people in the bar, it might have triggered that some people changed their usual attitudes because they know that their 'figures' will be kept in a record.
Maybe some people will drink less as they feel embarrased if some other person is testing how many beers they end. Others, might want to prove themselves 'strong' and drink much more than usual. People change their behaviour sometimes when they are aware that they are watched. This is called the observer effect.
Yes they do. most products in the united states have a label saying “made in china” that’s why most americans value made in the usa products more then others
ive been doing good! :D im just learning sign language how has your day been?
I think it means the money the only bill that you can get from the internet to get payment.
