Realists adhere to a generally optimistic/positive view of human nature

Who participates in a caucus?

a. all eligible voters in a state b. all registered voters in a state c. registered members of both parties d. registered members of the party that is selecting a candidate e. members of the state government

When people are sensitized to the purpose of your research during an initial assessment. As a result, later observations are based on what they picked up from the first assessment. The threat to internal validity here is

a. selection. b. maturation. c. history. d. testing.