Five-year-old trevor refuses to communicate with anyone. to get him to speak, his teacher first gives him candy for any sound, then only for a clearly spoken word, and finally only for a complete sentence. in terms of behavioral theory, the teacher is using the method of
a. secondary reinforcement
b. delayed reinforcement
c. spontaneous recovery
d. shaping

Which statement best explains how world war ii to end the great depression? a. new job opportunities opened as the united states produced more military products. b. the u.s. army provided new jobs that paid better than any other work at the time. c. people had to worry more about war problems than about the economic crisis. d. the war caused people to trust the economy enough to spend more money.

Which of the following events most directly contributed to the establishment of israel as a nation

Use statistics below to create a graph titled businesses in the united states, 1997-2003. use information from your graph and from figure 3.1 on page 71 to write a generalization about businesses in america free enterprise system.