When karen's mother got a new phone number, karen memorized it. but when she called her mother a day later, she called the old number. this is an example of interference?

The answer is a proactive interference. This is where an old data avoids the recollection of newer information. This might, for instance, happen with telephone numbers. When trying to remember a new phone number, the old phone number you have beforehand could proactively delay with the recall, to the fact when it is very hard to recall the new number.

    racial conflict and discrimination has existed ever since man learned to kill with rocks and bones. these conflicts arose from disputes between territory, power, wealth, religion, or simple difference. some of the most infamous racial disputes include slavery, the holocaust, and the civil rights movement.

    these listed disputes often resulted in casualties from all sides. riots, wars, imprisonment, and lynching are all commonly associated with racial conflict on severe levels.

      however, racism is an improving issue in recent decades. people are being more accepting and welcoming of diverse populations. though, the world isn't perfect and it will take much more time, if ever, until the world is rid of racism.