Which confounding factor is most likely to occur when participants are selected because their pretest measures were unusually high?

The current prime minister David Cameron a. styles himself as a new brand of Conservative, a compassionate conservative

b. represents an atypical prime minister having come to power directly from his former position as the mayor of London. c. is an ex-journalist from a working-class background. d. advocates more centrist policies only because of his party's being in coalition with the Liberal Democrats. e. rejects Britain's monarchy, calling for the establishment of a republic in the United Kingdom.

What are the two types of trial courts?

A. Limited jurisdiction and general jurisdiction B. Limited jurisdiction and original jurisdiction C. Original jurisdiction and general jurisdiction D. Original jurisdiction and appellate E. Probate and municipal