1. which of the following most closely relates to the term “social stratification”?
social classes
social data
social behaviors
2. which of the following identifies the meaning of the term “norm”?
the set of expectations based on a group identity
something that is predictable, based on scientific research
information from social ecologists
3. which of the following are effects of imperialism and industrialization on developing nations?
exploitation of resources
being controlled by another government
both a and b

Dr. robbins wants to know if there are different opinions regarding the value of public school education between native americans who have at least one relative who attended indian boarding school and native americans who have no family experience with indian boarding school. dr. robbins contacts 35 native american participants in each group. he wants each group to include younger as well as older adults, and a mix of male and female participants. he asks each person to complete a survey about their attitudes toward public education. the design of this study is: