In the early fall of 2004, across the nation, students became the central participants in numerous pro-Iraq war activities

The first real economy of Texas was

A) inherited from the Mexicans and was based on energy production. B) created by southern planters and based on cotton, a money crop. C) exclusively based on the barter system with Native Americans. D) not developed until the industrial revolution and the urbanization of the state. E) confined exclusively to the coastal region and based on shipping and trade.

In which of the following circumstances would a researcher be most likely to choose a quasi-experimental research design?

a. when there are more than three important confounding variables to control b. when doing research in an applied or natural setting where control is difficult to impose c. when controlling experimenter and participant expectation effects would involve an unacceptable level of deception d. when it is difficult to recruit enough participants to make standard statistical testing valid