External validity refers to: group of answer choices a. the extent to which an observed relationship between two variables may be the result of the influence of another variable b. the extent to which a causal relationship found in a study can be generalized beyond the study conditions c. whether a relationship between variables observed in a study accurately depicts that one variable is the cause of another d. the extent to which an observed relationship between two variables may be the result of the influence of another variable and whether a relationship between variables observed in a study accurately depicts that one variable is the cause of another, only

Which of the following early north american cultures were known for building wigwams and longhouses? a. eastern cultures b. great plains cultures c. western cultures d. northern cultures

Sara and her friends were at an iowa football game in iowa city. sara is a life long resident of iowa and goes to college at dmacc. while she was in iowa city, robert smashed into her car when he ran a red light. sara was seriously injured and taken to university hospitals in iowa city (fortunately her injuries were not life threatening but laid her up for a long time and she had to drop out of college for the rest of the semester). robert is from michigan and was in iowa city to see the game and then to party later. at the time of the accident robert was drunk (at least legally - he blew a 0.17 and the limit is 0.08). sara has sustained about $500,000 in damages between her current and future medical bills, pain/suffering, lost wages, etc. also her car was totaled in the accident. can sara sue robert in a federal court? explain why or why not. (be sure to mention the two primary factors associated with suing someone in a federal court in a case like this.)

What choices did the family of emmett till and their supporters make in exposing the brutality of his murder? how did these choices shape public reaction to the murder?